feat: add JOB_COMPLETION_INDEX #1612

Job	Run time
ci (kubernetes, ./tests/bin/ci.sh -e 'test(7.\|8.)\|python.*', ubuntu-latest)	2m 4s
ci (kubernetes, ./tests/bin/ci.sh -i 'test7.' -e 'test7(b.\|c.\|d.\|e.\|f.\|g.\|h.)', ubuntu-la...	6m 50s
ci (kubernetes, ./tests/bin/ci.sh -i 'test7(b.\|c.\|d.\|e.\|g.\|h.)', ubuntu-latest)	6m 41s
ci (kubernetes, ./tests/bin/ci.sh -i 'test7f.*', ubuntu-latest)	6m 8s
ci (kubernetes, ./tests/bin/ci.sh -i 'test8.*', ubuntu-latest)	3m 0s
ci (kubernetes, ./tests/bin/ci.sh -i 'python-code.*', ubuntu-latest)	13m 2s
ci (kubernetes, ./tests/bin/ci.sh -i 'python-language.*', ubuntu-latest)	7m 21s
ci (kubernetes, ./tests/bin/ci.sh -i 'python-universal.*', ubuntu-latest)	7m 32s
ci (kubernetes, ./tests/bin/go.sh, ubuntu-latest)	1m 41s
ci (kubernetes, ./tests/bin/pipelines.sh, ubuntu-latest)	13m 3s
ci (local, ./tests/bin/ci.sh -e 'test(7.\|8.)\|python.*', ubuntu-latest)	48s
ci (local, ./tests/bin/ci.sh -i 'test7.' -e 'test7(b.\|c.\|d.\|e.\|f.\|g.\|h.)', ubuntu-latest)	2m 31s
ci (local, ./tests/bin/ci.sh -i 'test7(b.\|c.\|d.\|e.\|g.\|h.)', ubuntu-latest)	2m 44s
ci (local, ./tests/bin/ci.sh -i 'test7f.*', ubuntu-latest)	3m 15s
ci (local, ./tests/bin/ci.sh -i 'test8.*', ubuntu-latest)	40s
ci (local, ./tests/bin/ci.sh -i 'python-code.*', ubuntu-latest)	2m 39s
ci (local, ./tests/bin/ci.sh -i 'python-language.*', ubuntu-latest)	11m 32s
ci (local, ./tests/bin/ci.sh -i 'python-universal.*', ubuntu-latest)	2m 42s
ci (local, ./tests/bin/go.sh, ubuntu-latest)	1m 42s
ci (local, ./tests/bin/pipelines.sh, ubuntu-latest)	1m 23s
	1h 37m 18s

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