Test

Fix requirements parsing with index URL option #3589

Job	Run time
all-features (ubuntu-20.04)	11m 15s
oldstable (ubuntu-20.04)	7m 18s
deno-checks	59s
clippy (ubuntu-20.04)	5m 50s
oldstable (self-hosted, macos, arm64)	51s
clippy (self-hosted, macos, arm64)	50s
all-features (self-hosted, macos, arm64)	1m 25s
rustfmt	22s
shellcheck	4s
test-matrix (ubuntu-20.04)	10m 6s
test-matrix (self-hosted, macos, arm64)	1m 18s
test	1s
	40m 19s

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