koordlet: revise sysctl initialization of the group identity

[saintube]

Ⅰ. Describe what this PR does

Fix the sysctl initialization of the cgroup identity since the /proc/sys/kernel/sched_group_identity_enabled may be not allowed to reset in some versions of the Anolis os.

Ⅱ. Does this pull request fix one issue?

Ⅲ. Describe how to verify it

Ⅳ. Special notes for reviews

V. Checklist

• I have written necessary docs and comments
• I have added necessary unit tests and integration tests
• All checks passed in make test

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (acfeb34) 66.56% compared to head (4efc3fa) 66.56%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1172   +/-   ##
=======================================
  Coverage   66.56%   66.56%           
=======================================
  Files         277      277           
  Lines       30057    30049    -8     
=======================================
- Hits        20007    20003    -4     
+ Misses       8618     8617    -1     
+ Partials     1432     1429    -3     

Flag	Coverage Δ
unittests	66.56% <100.00%> (+<0.01%)	⬆️

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

Impacted Files	Coverage Δ
...g/koordlet/runtimehooks/hooks/groupidentity/bvt.go	91.07% <100.00%> (ø)
...et/runtimehooks/hooks/groupidentity/interceptor.go	100.00% <100.00%> (ø)

... and 3 files with indirect coverage changes

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[zwzhang0107]

/lgtm
/approve

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: zwzhang0107

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