Update packages to remove unmaintained dependencies

[brandond]

Proposed Changes

• Update packages to remove dep on archived github.com/pkg/errors
• Update packages to remove dep on unmaintained github.com/gorilla/mux
• Replace merr.NewErrors with errors.Join

Waiting on:

• Update packages to remove dep on archived github.com/pkg/errors rancher/wharfie#38
• Update packages to remove dep on archived github.com/pkg/errors rancher/wrangler#628
• Update packages to remove dep on archived github.com/pkg/errors kine#618

Bumps rancher/wrangler, rancher/wharfie, and k3s-io/kine

Types of Changes

tech debt

Verification

check for no references to package in go.mod

Testing

Linked Issues

• Drop use of deprecated packages #13723

User-Facing Change

Further Comments

[codecov]

Codecov Report

❌ Patch coverage is 19.20200% with 324 lines in your changes missing coverage. Please review.
✅ Project coverage is 22.36%. Comparing base (8908d5f) to head (20f8d1f).
⚠️ Report is 13 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/agent/containerd/containerd.go	0.00%	22 Missing ⚠️
pkg/agent/config/config.go	0.00%	19 Missing ⚠️
pkg/util/errors/errors.go	19.04%	15 Missing and 2 partials ⚠️
pkg/agent/run.go	0.00%	15 Missing ⚠️
pkg/etcd/snapshot.go	0.00%	14 Missing ⚠️
pkg/agent/flannel/flannel.go	0.00%	13 Missing ⚠️
pkg/cluster/bootstrap.go	0.00%	13 Missing ⚠️
pkg/server/server.go	0.00%	13 Missing ⚠️
pkg/etcd/etcd.go	40.00%	12 Missing ⚠️
pkg/spegel/spegel.go	0.00%	12 Missing ⚠️
... and 55 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #13724      +/-   ##
==========================================
+ Coverage   22.19%   22.36%   +0.17%     
==========================================
  Files         191      193       +2     
  Lines       15556    15606      +50     
==========================================
+ Hits         3453     3491      +38     
- Misses      11628    11636       +8     
- Partials      475      479       +4     

Flag	Coverage Δ
unittests	22.36% <19.20%> (+0.17%)	⬆️

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