Reverse search direction for manifests' lockfiles #3337

Job	Run time
clippy (ubuntu-20.04)	5m 54s
clippy (self-hosted, macos, arm64)	48s
oldstable (ubuntu-20.04)	5m 12s
oldstable (self-hosted, macos, arm64)	48s
all-features (ubuntu-20.04)	11m 35s
all-features (self-hosted, macos, arm64)	1m 21s
deno-checks	10s
rustfmt	16s
shellcheck	4s
test-matrix (ubuntu-20.04)	11m 37s
test-matrix (self-hosted, macos, arm64)	1m 13s
test	1s
	38m 59s

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