Made changes to scripts to release multi-arch Beam SDK containers

[celeste-zeng]

• Change the default architectures for release containers to be both amd64 and arm64.
• Change all the dockerPush tasks called by the release pushAll task to be docker instead, since multi-arch containers are pushed during build.
• Details see the Change the release process to release multi-arch Beam SDK containers section in the doc.
• Github action test suites that build multi-arch Beam SDK containers:

1. Python ValidatesContainer Dataflow ARM
2. PostCommit Go Dataflow ARM
3. PostCommit Java Examples Dataflow ARM
   Those tests build and push multi-arch Beam SDK containers to us.gcr.io/apache-beam-testing/github-actions.
   The tests will fail for now since the Dataflow service side change is not yet completed, but by checking the repository we can see the multi-arch containers are tagged and pushed properly.

Test suites that test ARM components of the multi-arch containers:

1. beam_PostCommit_Go_Dataflow_ARM.yml
2. beam_PostCommit_Java_Examples_Dataflow_ARM.yml
3. beam_Python_ValidatesContainer_Dataflow_ARM.yml

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[codecov]

Codecov Report

Merging #27836 (7bc79c3) into master (fb6d167) will decrease coverage by 0.02%.
Report is 7 commits behind head on master.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #27836      +/-   ##
==========================================
- Coverage   70.88%   70.87%   -0.02%     
==========================================
  Files         861      861              
  Lines      105001   105001              
==========================================
- Hits        74429    74416      -13     
- Misses      29013    29028      +15     
+ Partials     1559     1557       -2     

Flag	Coverage Δ
go	53.72% <ø> (-0.04%)	⬇️
python	79.82% <ø> (-0.01%)	⬇️

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[tvalentyn]

Changes look good to me, cc: @lostluck next release manager. We will need to announce this in CHANGES.md as well.

[tvalentyn]

Please document in PR description which test suites exercise the ARM containers so that other folks can see the status of that before mering.

[celeste-zeng]

Run Java_PVR_Flink_Batch PreCommit

[lostluck]

Changes look good to me, cc: @lostluck next release manager. We will need to announce this in CHANGES.md as well.

Then be sure to send the PR that updates the CHANGES.md before the cut please.

[lostluck]

LGTM

[lostluck]

Run Go PreCommit

[celeste-zeng]

Run Python_Integration PreCommit

[celeste-zeng]

Run Java_PVR_Flink_Batch PreCommit

[lostluck]

@celeste-zeng What actions remain for this?