fix: use require instead of t.Fatal(err) in tests/integration package

[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.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[mmorel-35]

/assign @spzala

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 25.00000% with 6 lines in your changes missing coverage. Please review.

Project coverage is 68.76%. Comparing base (1ee6598) to head (c4845ed).
Report is 83 commits behind head on main.

❗ Current head c4845ed differs from pull request most recent head b6764b4

Please upload reports for the commit b6764b4 to get more accurate results.

Files with missing lines	Patch %	Lines
etcdctl/ctlv3/command/printer.go	0.00%	3 Missing ⚠️
etcdctl/ctlv3/command/check.go	0.00%	2 Missing ⚠️
etcdutl/etcdutl/snapshot_command.go	0.00%	1 Missing ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
etcdctl/ctlv3/command/elect_command.go	0.00% <ø> (ø)
etcdctl/ctlv3/command/ep_command.go	0.00% <ø> (ø)
etcdctl/ctlv3/command/lease_command.go	0.00% <ø> (ø)
etcdctl/ctlv3/command/printer_fields.go	0.00% <ø> (ø)
etcdctl/ctlv3/command/printer_simple.go	0.00% <ø> (ø)
etcdctl/ctlv3/command/printer_table.go	0.00% <ø> (ø)
etcdctl/ctlv3/command/snapshot_command.go	0.00% <ø> (ø)
etcdctl/ctlv3/command/user_command.go	0.00% <ø> (ø)
etcdctl/ctlv3/ctl.go	0.00% <ø> (ø)
etcdutl/ctl.go	0.00% <ø> (ø)
... and 8 more

... and 23 files with indirect coverage changes

@@            Coverage Diff             @@
##             main   #18820      +/-   ##
==========================================
+ Coverage   68.70%   68.76%   +0.05%     
==========================================
  Files         420      420              
  Lines       35531    35532       +1     
==========================================
+ Hits        24413    24433      +20     
+ Misses       9687     9671      -16     
+ Partials     1431     1428       -3     

---

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[mmorel-35]

/assign @ahrtr

[ahrtr]

/ok-to-test

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: mmorel-35
Once this PR has been reviewed and has the lgtm label, please ask for approval from ahrtr. For more information see the Kubernetes Code Review Process.

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[ahrtr]

Please try to breakdown the PR. We love small PR to make the review easy, although this PR is just mechanical changes.
Thanks

[mmorel-35]

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

[mmorel-35]

/retest

[mmorel-35]

/retest

[mmorel-35]

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

[mmorel-35]

I hold on this to apply gofumpt first