Bump actions/github-script from 7 to 8 #2330

Job	Run time
should run ci	8s
cache-pixi-lock	1m 31s
build-and-upload-nightly-parcels	1m 18s
Unit tests: ubuntu \| pixi run -e test tests	2m 57s
Unit tests: ubuntu \| pixi run -e test-minimum tests	3m 47s
Unit tests: ubuntu \| pixi run -e test-py311 tests	4m 4s
Unit tests: ubuntu \| pixi run -e test-py313 tests	4m 22s
Unit tests: windows \| pixi run -e test tests	6m 37s
TypeChecking: pixi run typing	-1s
Integration: ${{ matrix.os }} \| pixi run -e ${{ matrix.pixi-environment }} tests-notebooks	-1s
merge-test-artifacts	0s
	24m 42s

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