[YUNIKORN-2289] isolate e2e tests in separate namespaces

[rrajesh-cloudera]

Implemented isolation of end-to-end tests in separate namespaces. This change enhances test isolation and reduces potential conflicts between tests, thereby improving the reliability and predictability of our test suite.

What type of PR is it?

• - Bug Fix
• - Improvement
• - Feature
• - Documentation
• - Hot Fix
• - Refactoring

Todos

• - Task

What is the Jira issue?

https://issues.apache.org/jira/browse/YUNIKORN-2289

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

All modified and coverable lines are covered by tests ✅

Project coverage is 68.20%. Comparing base (8add17d) to head (1eaf797).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #913   +/-   ##
=======================================
  Coverage   68.20%   68.20%           
=======================================
  Files          70       70           
  Lines        7621     7621           
=======================================
  Hits         5198     5198           
  Misses       2215     2215           
  Partials      208      208           

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[craigcondit]

+1 LGTM.