Add new resource hint to all sdks for number of cpus per worker machine

[kerrydc]

This resource hint allows for further specifcation of user needs at the transfor or pipeline level.

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[codecov]

Codecov Report

Merging #28848 (ddf272b) into master (31e1c7a) will decrease coverage by 0.09%.
Report is 87 commits behind head on master.
The diff coverage is 86.95%.

@@            Coverage Diff             @@
##           master   #28848      +/-   ##
==========================================
- Coverage   72.23%   72.15%   -0.09%     
==========================================
  Files         684      686       +2     
  Lines      101198   101613     +415     
==========================================
+ Hits        73102    73317     +215     
- Misses      26518    26716     +198     
- Partials     1578     1580       +2     

Flag	Coverage Δ
go	53.44% <87.50%> (+0.02%)	⬆️
python	82.58% <85.71%> (-0.21%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
sdks/python/apache_beam/transforms/resources.py	92.56% <85.71%> (-0.43%)	⬇️
sdks/go/pkg/beam/options/resource/hint.go	90.32% <87.50%> (-4.49%)	⬇️

... and 28 files with indirect coverage changes

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[github-actions]

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R: @AnandInguva for label python.
R: @Abacn for label java.
R: @jrmccluskey for label go.

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[AnandInguva]

LGTM!! Python changes look good to me

[Abacn]

thanks, LGTM from java side. Just had a minor comment about documentation

[jrmccluskey]

LGTM from the Go side

[Abacn]

there are format errors, for java, run ./gradlew :sdks:java:core:spotlessApply

for python, lint error not related to this PR

[Abacn]

There is go test error:

# github.com/apache/beam/sdks/v2/go/pkg/beam/options/resource [github.com/apache/beam/sdks/v2/go/pkg/beam/options/resource.test]
Error: pkg/beam/options/resource/hint_test.go:167:30: undefined: pipepb.StandardResourceHints_CPU_COUNT

[lostluck]

LGTM for the Updated Go code, if we get the Go Tests precommit to pass.

[Abacn]

it appears go test is failing on master

However the first a few red run was not go change.

EDIT: actually this is an long standing flaky test, opened #28951

[Abacn]

Run Java_PVR_Flink_Batch PreCommit

[Abacn]

Run Java PreCommit

[Abacn]

java precommit timeout due to #28957 not related - merging for now