Updates GH Actions to avoid using deprecated node

[m1kola]

Description of the change:

Updates GH actions to versions which use Node 16.

Motivation for the change:

Currently some of our actions produce the following warning:

Node.js 12 actions are deprecated. Please update the following actions to use Node.js 16: actions/checkout@v2. For more information see: https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/.

NOTE: This PR doesn't update actions/checkout@ to v3 in .github/workflows/unit.yaml as it breaks .github/workflows/codecov.sh. See #1118 which switches this job to use codecov GH action and updates actions/checkout@ to v3.

Reviewer Checklist

• Implementation matches the proposed design, or proposal is updated to match implementation
• Sufficient unit test coverage
• Sufficient end-to-end test coverage
• Docs updated or added to /docs
• Commit messages sensible and descriptive

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[codecov]

Codecov Report

Merging #1117 (d5af84c) into master (6c60284) will increase coverage by 0.02%.
The diff coverage is n/a.

❗ Current head d5af84c differs from pull request most recent head 67a4faf. Consider uploading reports for the commit 67a4faf to get more accurate results

@@            Coverage Diff             @@
##           master    #1117      +/-   ##
==========================================
+ Coverage   52.64%   52.66%   +0.02%     
==========================================
  Files         108      108              
  Lines        9703     9703              
==========================================
+ Hits         5108     5110       +2     
+ Misses       3653     3651       -2     
  Partials      942      942              

see 1 file with indirect coverage changes

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: grokspawn, m1kola

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[grokspawn]

/lgtm