fix: use testify instead of t.Fatal in tests/common package (part 2)

[mmorel-35]

This uses testify instead of testing for t.Fatal calls

[k8s-ci-robot]

Hi @mmorel-35. Thanks for your PR.

I'm waiting for a etcd-io member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[mmorel-35]

/assign @ahrtr

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: mmorel-35
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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.77%. Comparing base (0f9c128) to head (08a96c5).
Report is 79 commits behind head on main.

❗ Current head 08a96c5 differs from pull request most recent head 59a8434

Please upload reports for the commit 59a8434 to get more accurate results.

Additional details and impacted files

see 26 files with indirect coverage changes

@@            Coverage Diff             @@
##             main   #18860      +/-   ##
==========================================
- Coverage   68.80%   68.77%   -0.03%     
==========================================
  Files         420      420              
  Lines       35532    35532              
==========================================
- Hits        24448    24438      -10     
- Misses       9662     9666       +4     
- Partials     1422     1428       +6     

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[jmhbnz]

/ok-to-test

[mmorel-35]

/test pull-etcd-integration-1-cpu-amd64

[mmorel-35]

I hold on this to apply gofumpt first