refactor(lock_rules): small improvements (#12534) #300

Job	Run time
Nix Build (macos-latest)	9m 31s
Nix Build (ubuntu-latest)	5m 44s
Nix Tests (ubuntu-latest)	25m 10s
Documentation	1m 5s
Format	8m 32s
Cygwin Build	3m 2s
Bootstrap (ubuntu-latest)	4m 20s
Nix Build 4.08 (ubuntu-latest)	5m 25s
Wasm_of_ocaml	7m 40s
Create local opam switch (macos-latest, 5)	12m 45s
Coq 8.16.1	28m 48s
Create local opam switch (ubuntu-latest, 5)	9m 24s
Build microbenchmarks	19m 10s
Build (ocaml-variants.5.4.0+trunk, ubuntu-latest)	5m 35s
Build (5.3.x, macos-15-intel)	15m 6s
Build (ocaml-base-compiler.5.3.0,system-mingw, windows-latest, true)	22m 37s
Build (5.3.x, macos-latest, true)	18m 45s
Build (ocaml-variants.4.14.2+options,ocaml-option-32bit, ubuntu-latest, true)	4m 37s
Build (5.3.x, ubuntu-latest, true)	8m 54s
Build (ocaml-compiler.5.3.0,system-msvc, windows-latest, true)	20m 34s
Build (4.14.x, ubuntu-latest)	4m 17s
Build (4.14.x, macos-latest)	8m 26s
	4h 9m 27s

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