feat: migrate to composite actions

[ronnetzer]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: CONTRIBUTING.md
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[x] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Other... Please describe:

remove git utils and use nrwl/nx-set-shas action instead
closes #21 closes #22

Does this PR introduce a breaking change?

[ ] Yes
[x] No

[nx-cloud]

☁️ Nx Cloud Report

CI ran the following commands for commit 3d39a7e. Click to see the status, the terminal output, and the build insights.

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✅ Successfully ran 2 targets

• nx run-many --projects=nx-affected-matrix,nx-distributed-task --target=build --scan --parallel --maxParallel=3
• nx run-many --projects=nx-affected-matrix,nx-distributed-task,utils --target=test --scan --parallel --maxParallel=3

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[codecov]

Codecov Report

Merging #27 (3d39a7e) into main (75aec2c) will increase coverage by 0.78%.
The diff coverage is 88.05%.

@@            Coverage Diff             @@
##             main      #27      +/-   ##
==========================================
+ Coverage   85.46%   86.24%   +0.78%     
==========================================
  Files          12       13       +1     
  Lines         344      349       +5     
  Branches       46       51       +5     
==========================================
+ Hits          294      301       +7     
+ Misses         40       38       -2     
  Partials       10       10              

Flag	Coverage Δ
nx-affected-matrix	97.77% <100.00%> (-0.05%)	⬇️
nx-distributed-task	91.89% <93.10%> (-2.71%)	⬇️
utils	83.52% <84.82%> (+1.52%)	⬆️

Impacted Files	Coverage Δ
packages/utils/src/lib/fs.ts	25.00% <40.00%> (-3.00%)	⬇️
packages/utils/src/lib/inputs.ts	65.51% <46.15%> (ø)
packages/utils/src/lib/npm.ts	66.66% <66.66%> (ø)
packages/nx-distributed-task/src/app/inputs.ts	80.00% <75.00%> (-3.34%)	⬇️
packages/utils/src/lib/exec.ts	90.62% <83.33%> (-3.13%)	⬇️
packages/utils/src/lib/nx.ts	83.92% <86.66%> (ø)
packages/utils/src/lib/logger.ts	91.66% <90.32%> (+48.80%)	⬆️
...nx-distributed-task/src/app/nx-distributed-task.ts	93.75% <96.00%> (-3.03%)	⬇️
packages/nx-affected-matrix/src/app/inputs.ts	100.00% <100.00%> (ø)
...s/nx-affected-matrix/src/app/nx-affected-matrix.ts	97.56% <100.00%> (-0.06%)	⬇️
... and 5 more

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