Allow file URLs to be used as import specifiers #20916

Job	Run time
Build: ubuntu-latest	59s
Build: windows-latest	54s
Test (Smoke): ubuntu-latest (node@18)	4m 16s
Test (Smoke): windows-latest (node@18)	6m 59s
Lint	1m 14s
Test (E2E): ubuntu-latest (node@18.17.1)	3m 8s
Test: ubuntu-latest (node@18)	3m 10s
Test (E2E): windows-latest (node@18.17.1)	5m 42s
Test: ubuntu-latest (node@20.5.1)	3m 24s
Test: macos-latest (node@18)	6m 12s
Test: windows-latest (node@18.17.1)	6m 42s
	42m 40s

Provide feedback