[YUNIKORN-2973] Adding GinkgoLinter Checks and fix

[rrajesh-cloudera]

What is this PR for?

Add Ginkgo Linter for E2E Tests

• Added Ginkgo linter to the .golangci.yml configuration file.
• Configured the linter to run only for the test folder
• Updated the code to resolve Ginkgo linter issues by replacing gomega.Expect(kubeClient.SetClient()).To(gomega.BeNil()) with gomega.Expect(kubeClient.SetClient()).To(gomega.Succeed()).

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-2973

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 68.05%. Comparing base (31132ba) to head (8b118a7).
Report is 3 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #941      +/-   ##
==========================================
+ Coverage   68.03%   68.05%   +0.02%     
==========================================
  Files          70       70              
  Lines        9194     9194              
==========================================
+ Hits         6255     6257       +2     
+ Misses       2732     2730       -2     
  Partials      207      207              

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[pbacsko]

LGTM

[wilfred-s]

LGTM +1