add label selector in Resource Modifiers

[27149chen]

Please add a summary of your change

This pr made some improvements in Resource Modifiers:

1. add label selector
2. change the field name from groupKind to groupResource

Does your change fix a particular issue?

N/A

Please indicate you've done the following:

• Accepted the DCO. Commits without the DCO will delay acceptance.
• Created a changelog file or added /kind changelog-not-required as a comment on this pull request.
• Updated the corresponding documentation in site/content/docs/main.

[codecov]

Codecov Report

Merging #6704 (7271da9) into main (831be07) will decrease coverage by 0.01%.
Report is 4 commits behind head on main.
The diff coverage is 71.42%.

@@            Coverage Diff             @@
##             main    #6704      +/-   ##
==========================================
- Coverage   60.33%   60.32%   -0.01%     
==========================================
  Files         242      242              
  Lines       25982    25986       +4     
==========================================
+ Hits        15675    15676       +1     
- Misses       9203     9205       +2     
- Partials     1104     1105       +1     

Files Changed	Coverage Δ
internal/resourcemodifiers/resource_modifiers.go	75.65% <66.66%> (-1.83%)	⬇️
.../resourcemodifiers/resource_modifiers_validator.go	100.00% <100.00%> (ø)

[anshulahuja98]

CC @reasonerjt, we need to put this in 1.12 release branch, do you folks generally handle the cherry pick of such changes to release branch, or can I help in any way here?