Bump sass from 1.69.5 to 1.70.0 #1861

Job	Run time
Lint	1m 0s
End-to-end tests (macos-latest/npm)	8m 30s
Basic tests (macos-latest)	2m 18s
Basic tests (ubuntu-latest)	1m 39s
End-to-end tests (macos-latest/yarn)	6m 6s
Basic tests (windows-latest)	6m 35s
End-to-end tests (ubuntu-latest/npm)	3m 35s
End-to-end tests (ubuntu-latest/yarn)	3m 18s
End-to-end tests (windows-latest/npm)	15m 3s
End-to-end tests (windows-latest/yarn)	14m 3s
automerge	4s
	1h 2m 11s

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