Use IPv6 in case is the first configured IP with dualstack

[rbrtbnfgl]

Proposed Changes

Use always IPv6 when the first configured node-ip is IPv6 also in case of dualstack.
This fix also will always use the configured node-ip on kubelet to address rancher/rke2#4759
In case of dualstack node-ip it adds CloudDualStackNodeIPs=true as feature-gates configuration to fix #6023 from k8s 1.27 version and it doesn't require to add node-ip=0.0.0.0 within the kubelet args.
The PR also fix #8467 (comment) showing the IPv6 when listing pods.

Types of Changes

Verification

Testing

Linked Issues

#8467

User-Facing Change

Further Comments

[codecov]

Codecov Report

Attention: 6 lines in your changes are missing coverage. Please review.

Comparison is base (ced25af) 44.73% compared to head (4925d04) 50.64%.
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8581      +/-   ##
==========================================
+ Coverage   44.73%   50.64%   +5.91%     
==========================================
  Files         140      144       +4     
  Lines       14738    14966     +228     
==========================================
+ Hits         6593     7580     +987     
+ Misses       7031     6173     -858     
- Partials     1114     1213      +99     

Flag	Coverage Δ
e2etests	48.30% <54.54%> (?)
inttests	43.55% <50.00%> (-1.19%)	⬇️
unittests	19.55% <ø> (?)

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

Files	Coverage Δ
pkg/agent/run.go	42.53% <100.00%> (-1.41%)	⬇️
pkg/cli/cmds/server.go	100.00% <ø> (ø)
pkg/agent/config/config.go	50.98% <0.00%> (+1.78%)	⬆️
pkg/daemons/agent/agent_linux.go	58.45% <50.00%> (-1.55%)	⬇️

... and 60 files with indirect coverage changes

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[dereknola]

Since the kube-arg of 0.0.0.0 is no longer required, please modify the E2E dualstack test and remove those arguments with this PR.

[manuelbuil]

Since CloudDualStackNodeIPs=true starts in 1.27, we won't be able to backport it to all branches. What if you split the PR into two commits? One without the CloudDualStackNodeIPs=true which can be backported to 1.25 and 1.26 and one with the CloudDualStackNodeIPs=true (or two PRs, whatever is easier to you)

[rbrtbnfgl]

I already edited a different commit for 1.26 and 1.25. The fix is not working and kubelet is still prioritising the IPv4 as pod IP on those versions.