Sorts label styles generated from label_sync

[qhuynh96]

Fixes labels' styles moving around busted in #9437

/cc @justaugustus
/cc @cblecker

[justaugustus]

@qhuynh96 -- thanks for taking a look at this!

I tested this locally and the hack/verify-labels.sh appears to return consistently now:

[augustus@auggiebook01 test-infra]$ git remote update
Fetching origin
Fetching up
[augustus@auggiebook01 test-infra]$ git fetch up pull/9633/head:test-fix-label-css
From github.com:kubernetes/test-infra
 * [new ref]             refs/pull/9633/head -> test-fix-label-css
[augustus@auggiebook01 test-infra]$ git checkout test-fix-label-css 
Switched to branch 'test-fix-label-css'
[augustus@auggiebook01 test-infra]$ git cherry-pick 43565a9756b9bb952d4eea7dac60ce56b66684c9
error: could not apply 43565a975... Add kind/kep label for k/{community,features}
hint: after resolving the conflicts, mark the corrected paths
hint: with 'git add <paths>' or 'git rm <paths>'
hint: and commit the result with 'git commit'
[augustus@auggiebook01 test-infra]$ git diff
diff --cc prow/cmd/deck/static/labels.css
index 6eae7bc9e,18ea6620f..000000000
--- a/prow/cmd/deck/static/labels.css
+++ b/prow/cmd/deck/static/labels.css
<SNIPPED>
  
[augustus@auggiebook01 test-infra]$ git status
On branch test-fix-label-css
You are currently cherry-picking commit 43565a975.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:

	modified:   label_sync/labels.md
	modified:   label_sync/labels.yaml

Unmerged paths:
  (use "git add <file>..." to mark resolution)

	both modified:   prow/cmd/deck/static/labels.css

[augustus@auggiebook01 test-infra]$ time ./hack/update-labels.sh 
INFO: Analysed target //label_sync:label_sync (0 packages loaded).
INFO: Found 1 target...
Target //label_sync:label_sync up-to-date:
  bazel-bin/label_sync/linux_amd64_stripped/label_sync
INFO: Elapsed time: 1.787s, Critical Path: 1.63s
INFO: 2 processes: 2 linux-sandbox.
INFO: Build completed successfully, 3 total actions
INFO: Running command line: bazel-bin/label_sync/linux_amd64_stripped/label_sync '--config=/home/augustus/prj/k8s/test-infra/label_sync/labels.yaml' '--action=docs' '--docs-template=/home/augustus/prj/k8s/test-infra/label_sync/labels.md.tmpl' '--docs-output=/home/augustus/prj/k8s/test-infra/label_sync/labels.md' '--css-template=/home/augustus/prj/k8s/test-infra/label_sync/labels.css.tmpl' '--css-output=/home/augustus/pINFO: Build completed successfully, 3 total actions
WARN[0000] Repo isn't inside orgs                        org=kubernetes orgs= repo=kubernetes/community
WARN[0000] Repo isn't inside orgs                        org=kubernetes orgs= repo=kubernetes/features
WARN[0000] Repo isn't inside orgs                        org=kubernetes orgs= repo=kubernetes/kubernetes
WARN[0000] Repo isn't inside orgs                        org=kubernetes orgs= repo=kubernetes/test-infra

real	0m1.905s
user	0m0.069s
sys	0m0.045s
[augustus@auggiebook01 test-infra]$ time ./hack/verify-labels.sh 
INFO: Analysed target //label_sync:label_sync (0 packages loaded).
INFO: Found 1 target...
Target //label_sync:label_sync up-to-date:
  bazel-bin/label_sync/linux_amd64_stripped/label_sync
INFO: Elapsed time: 0.326s, Critical Path: 0.16s
INFO: 0 processes.
INFO: Build completed successfully, 1 total action
INFO: Running command line: bazel-bin/label_sync/linux_amd64_stripped/label_sync '--config=/home/augustus/prj/k8s/test-infra/label_sync/labels.yaml' '--action=docs' '--docs-template=/home/augustus/prj/k8s/test-iINFO: Build completed successfully, 1 total action
WARN[0000] Repo isn't inside orgs                        org=kubernetes orgs= repo=kubernetes/features
WARN[0000] Repo isn't inside orgs                        org=kubernetes orgs= repo=kubernetes/kubernetes
WARN[0000] Repo isn't inside orgs                        org=kubernetes orgs= repo=kubernetes/test-infra
WARN[0000] Repo isn't inside orgs                        org=kubernetes orgs= repo=kubernetes/community

real	0m0.464s
user	0m0.089s
sys	0m0.046s
[augustus@auggiebook01 test-infra]$ time ./hack/verify-labels.sh 
INFO: Analysed target //label_sync:label_sync (0 packages loaded).
INFO: Found 1 target...
Target //label_sync:label_sync up-to-date:
  bazel-bin/label_sync/linux_amd64_stripped/label_sync
INFO: Elapsed time: 0.323s, Critical Path: 0.15s
INFO: 0 processes.
INFO: Build completed successfully, 1 total action
INFO: Running command line: bazel-bin/label_sync/linux_amd64_stripped/label_sync '--config=/home/augustus/prj/k8s/test-infra/label_sync/labels.yaml' '--action=docs' '--docs-template=/home/augustus/prj/k8s/test-iINFO: Build completed successfully, 1 total action
WARN[0000] Repo isn't inside orgs                        org=kubernetes orgs= repo=kubernetes/kubernetes
WARN[0000] Repo isn't inside orgs                        org=kubernetes orgs= repo=kubernetes/test-infra
WARN[0000] Repo isn't inside orgs                        org=kubernetes orgs= repo=kubernetes/community
WARN[0000] Repo isn't inside orgs                        org=kubernetes orgs= repo=kubernetes/features

real	0m0.435s
user	0m0.069s
sys	0m0.034s
[augustus@auggiebook01 test-infra]$ time ./hack/verify-labels.sh 
INFO: Analysed target //label_sync:label_sync (0 packages loaded).
INFO: Found 1 target...
Target //label_sync:label_sync up-to-date:
  bazel-bin/label_sync/linux_amd64_stripped/label_sync
INFO: Elapsed time: 0.357s, Critical Path: 0.14s
INFO: 0 processes.
INFO: Build completed successfully, 1 total action
INFO: Running command line: bazel-bin/label_sync/linux_amd64_stripped/label_sync '--config=/home/augustus/prj/k8s/test-infra/label_sync/labels.yaml' '--action=docs' '--docs-template=/home/augustus/prj/k8s/test-iINFO: Build completed successfully, 1 total action
WARN[0000] Repo isn't inside orgs                        org=kubernetes orgs= repo=kubernetes/test-infra
WARN[0000] Repo isn't inside orgs                        org=kubernetes orgs= repo=kubernetes/community
WARN[0000] Repo isn't inside orgs                        org=kubernetes orgs= repo=kubernetes/features
WARN[0000] Repo isn't inside orgs                        org=kubernetes orgs= repo=kubernetes/kubernetes

real	0m0.531s
user	0m0.102s
sys	0m0.067s

/lgtm

[krzyzacy]

/approve
thanks!

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: justaugustus, krzyzacy, qhuynh96

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• label_sync/OWNERS [krzyzacy]
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