fix: Add locking/unlocking to set Add(), Delete(), and Reset()

[jonathan-innis]

Fixes #N/A

Description

Add(), Delete(), and Reset() weren't gated by a mutex after we changed the package that we were using for sets to align with our other set packages

How was this change tested?

make presubmit

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[engedaam]

/lgtm

[njtran]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jonathan-innis, njtran

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[engedaam]

/lgtm

[coveralls]

Pull Request Test Coverage Report for Build 7920525412

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 19 (100.0%) changed or added relevant lines in 1 file are covered.
• 2 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.03%) to 80.703%

---

Files with Coverage Reduction	New Missed Lines	%
pkg/test/expectations/expectations.go	2	95.9%

Totals
Change from base Build 7919997209:	0.03%
Covered Lines:	7988
Relevant Lines:	9898

---

💛 - Coveralls