[YUNIKORN-1921] Gang Scheduled Placeholder Pods Don't Inherit Priorit…

[manirajv06]

…yClasses

What is this PR for?

Use the priority of the originator pod as the priority for all placeholders.

What type of PR is it?

• - Bug Fix

Todos

• - Task

What is the Jira issue?

https://issues.apache.org/jira/browse/YUNIKORN-1921

How should this be tested?

Screenshots (if appropriate)

Questions:

• - The licenses files need update.
• - There is breaking changes for older versions.
• - It needs documentation.

[codecov]

Codecov Report

Merging #657 (b38eccd) into master (ad70954) will increase coverage by 0.01%.
Report is 4 commits behind head on master.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #657      +/-   ##
==========================================
+ Coverage   71.42%   71.44%   +0.01%     
==========================================
  Files          51       51              
  Lines        8116     8128      +12     
==========================================
+ Hits         5797     5807      +10     
- Misses       2122     2123       +1     
- Partials      197      198       +1     

Files Changed	Coverage Δ
pkg/cache/placeholder.go	93.58% <100.00%> (+0.43%)	⬆️

... and 1 file with indirect coverage changes

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[craigcondit]

Minor nit.

[craigcondit]

+1 LGTM. E2e test failures are unrelated.