[Release-1.26] Server Token Rotation

[dereknola]

Proposed Changes

Backport #8265

• Consolidate NewCertCommands
• Add support for user defined new token
• Add E2E testlets
• Ensure agent token also changes

Linked Issues

#8298

User-Facing Change

Users can now rotate the server token using `k3s token rotate -t <OLD_TOKEN> --new-token <NEW_TOKEN>`. After command succeeds, all server nodes must be restarted with the new token.

Further Comments

[codecov]

Codecov Report

Attention: 70 lines in your changes are missing coverage. Please review.

Comparison is base (db869df) 19.48% compared to head (6b07899) 19.30%.

Additional details and impacted files

@@               Coverage Diff                @@
##           release-1.26    #8577      +/-   ##
================================================
- Coverage         19.48%   19.30%   -0.19%     
================================================
  Files                83       83              
  Lines              5589     5642      +53     
================================================
  Hits               1089     1089              
- Misses             4274     4327      +53     
  Partials            226      226              

Flag	Coverage Δ
unittests	19.30% <0.00%> (-0.19%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
pkg/daemons/control/deps/deps.go	48.78% <ø> (ø)
pkg/cli/cmds/certs.go	0.00% <0.00%> (ø)
pkg/cli/cmds/token.go	0.00% <0.00%> (ø)
pkg/cluster/storage.go	0.00% <0.00%> (ø)

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