Add flags to build multiarch Go SDK containers and fix Go Dataflow AR… #22279

Job	Run time
Check environment variables	9s
Build python source distribution	1m 9s
Build python wheels on auto for ubuntu-latest	1h 2m 45s
Build python wheels on auto for macos-latest	32m 21s
Build python wheels on auto for windows-latest	16m 41s
Build python wheels on aarch64 for ubuntu-latest	2h 19m 44s
Prepare GCS	29s
Upload python source distribution to GCS bucket	35s
Upload wheels to GCS bucket (ubuntu-latest)	53s
Upload wheels to GCS bucket (macos-latest)	30s
Upload wheels to GCS bucket (windows-latest)	32s
Branch repo nightly	0s
List files on Google Cloud Storage Bucket	27s
	4h 16m 15s

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