Added platform to manifests.

[dblock]

Signed-off-by: dblock [email protected]

Description

Continuing the effort to build on other platforms than Linux, #741.

• Added platform to build and bundle manifests.
• Expose platform in scripts that currently take architecture.
• Don't alter any build paths, but get ready for fix collisions in [Bug]: Distribution builds can have path collisions #669.

Check List

• Commits are signed per the DCO using --signoff

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[codecov-commenter]

Codecov Report

Merging #751 (e6f4037) into main (7de6526) will increase coverage by 0.03%.
The diff coverage is 97.67%.

@@            Coverage Diff             @@
##             main     #751      +/-   ##
==========================================
+ Coverage   91.17%   91.21%   +0.03%     
==========================================
  Files          75       75              
  Lines        1984     1992       +8     
==========================================
+ Hits         1809     1817       +8     
  Misses        175      175              

Impacted Files	Coverage Δ
src/run_assemble.py	92.30% <ø> (ø)
src/test_workflow/integ_test/local_test_cluster.py	87.06% <87.50%> (ø)
src/assemble_workflow/bundle_recorder.py	100.00% <100.00%> (ø)
src/build_workflow/build_recorder.py	100.00% <100.00%> (ø)
src/manifests/build_manifest.py	100.00% <100.00%> (ø)
src/manifests/bundle_manifest.py	100.00% <100.00%> (ø)
src/run_integ_test.py	95.65% <100.00%> (ø)
src/test_workflow/dependency_installer.py	100.00% <100.00%> (ø)
src/test_workflow/perf_test/perf_test_cluster.py	100.00% <100.00%> (ø)
src/test_workflow/test_args.py	100.00% <100.00%> (ø)

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[VachaShah]

LGTM!