build: remove tools/baseline_browserslist from pnpm workspace #2770

Job	Run time
list	19s
workflow (devkit-core-tests)	1m 23s
workflow (build-cli)	1m 39s
workflow (devkit-core-tests-rerun)	1m 26s
workflow (build-unit-tests)	2m 15s
workflow (modules-builder-tests)	1m 45s
	8m 47s

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