chore: [sc-12629] [CLI] Make Test-Nightly run OS tests sequentially #2183

Job	Run time
Lint / CLI Lint (windows-latest)	1m 12s
Lint / CLI Lint (macos-latest)	1m 17s
Lint / CLI Lint (ubuntu-latest)	35s
Build (ubuntu-latest) / CLI Build	2m 48s
Build (windows-latest) / CLI Build	4m 1s
Build (macos-latest) / CLI Build	4m 11s
Test (macos-latest, --partition hash:1/3) / CLI Test (staging)	13m 54s
Test (ubuntu-latest, --partition hash:2/3) / CLI Test (staging)	14m 50s
Test (windows-latest, --partition hash:3/3) / CLI Test (staging)	13m 19s
	56m 7s

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