rfc: global -C flag for working-directory switching #10930

Job	Run time
optimize-ci	4s
detect-changes	5s
done	3s
Lint	0s
download-previous-rolldown-binaries	0s
Test	0s
Test (Linux x64 musl)	0s
CLI E2E test	0s
CLI snap test (${{ matrix.target }}, ${{ matrix.shard }}/${{ matrix.shardTotal }})	0s
CLI E2E test (Linux x64 musl)	0s
Local CLI `vp install` E2E test (Socket Firewall Free)	0s
Local CLI `vp install` E2E test	0s
	12s

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