* GitHub Proxy part 1: github integration resource (#48999)

* github integration resource

* fix lib/web

* revert withSecrets

* use static credentials

* address review comments

* fix ut

* GitHub Proxy part 2: git_server resource, service, and RBAC (#49393)

* git_server resource and role.allow.github_permissions

* implicit RO on KindGitServer

* review comments

* fix ut

* make -C integrations/operator crd

* fix ut again

* make crds-up-to-date and make -C integrations/terraform docs

* GitHub proxy part 1.5: integration in web ui (#49561)

* GitHub proxy part 1.5: integration in web ui

* fix lint

* GitHub Proxy part 3.5: caching PluginStaticCredentials (#49472)

* GitHub Proxy part 3.5: caching PluginStaticCredentials

* fix lint

* GitHub proxy part 2.5: git_server cache (#49564)

* GitHub proxy part 2.5: git_server cache

* revert event

* fix getAll

* review comments

* GitHub Proxy part 3: gen github user cert and export CA (#49396)

* GitHub Proxy part 3: gen github user cert and export CA

* address pr comment

* minor refactor

* use cache

* fix build and cache

* GitHub proxy part 4: `tsh git ls` with unified resource (#49596)

* GitHub proxy part 4: tsh git ls

* fix ut

* update username note

* fix

* GitHub proxy part 5: OAuth flow to retrieve GitHub identity (#49849)

* GitHub proxy part 5: OAuth flow to retrieve GitHub identity

* review comments round1

* review comments round 2 and update tsh git list

* make -C integrations/operator crd

* make -C integrations/terraform docs

* fix flaky test

* GitHub proxy part 6.5: tsh git ssh/clone/config (#50044)

* GitHub proxy part 6.5: tsh git ssh/clone/config

* review comments

* fix test

* fix ut for lookpath

* fix logger and update dependency version

* go mod tidy for integrations

* GitHub proxy part 7: audit events (#49923)

* GitHub proxy part 7: audit events

* make Git Command consistent

* fix typo

* GitHub proxy: git command recorder (#50505)

* GitHub proxy: recording git command

* address review

* review comments

* allow flags after repository for git-upload-pack

* GitHub proxy part 6: proxing Git using SSH transport (#49980)

* GitHub proxy part 6: proxing Git using SSH transport

* better command parsing and update suite

* refactor

* revert unnecearrty files

* address review comments

* ut fix

* revert localsite_test.go

* change special suffix to teleport-github-org for routing

* fix routing ut

* minor typo edit

* fix ut after sshca change

* add UT to sshutils

* minor review comments

* fix api ut because of special suffix change

* GitServerReadOnlyClient

* downgrade error to warning

* run go mod tidy. not sure why it's needed

* rename mock.go to mock_test.go

* GitHub Proxy: complete audit event flow and add an enterprise guard (#51049)

* fix lint and remove accidently checked-in binary

* Fix flaky git.TestForwardServer test (#51112)