refactor(pkg): reduce scope of some bindings #29424

Job	Run time
Build microbenchmarks	2m 32s
Coq 8.16.1	7m 9s
Create local opam switch (macos-latest, 5)	5m 34s
Build (macos-latest, 5.1.x)	13m 6s
Create local opam switch (macos-latest, 4.14)	5m 39s
Build (ubuntu-latest, 5.1.x)	8m 30s
Create local opam switch (ubuntu-latest, 5)	5m 15s
Build (ocaml-variants.5.3.0+trunk, ubuntu-latest, true)	1m 33s
Documentation	57s
Create local opam switch (ubuntu-latest, 4.14)	5m 46s
Format	1m 5s
Build (4.14.x, ubuntu-latest, true)	1m 34s
Build (4.14.x, macos-latest, true)	2m 15s
Build monorepo benchmark docker image	3m 45s
Nix (macos-latest)	1m 55s
Build (5.1.x, macos-13, true)	3m 53s
Wasm_of_ocaml	10m 33s
Nix (ubuntu-latest)	55s
Build (ocaml-base-compiler.4.14.2,system-msvc, windows-latest)	14m 54s
Build (ocaml-base-compiler.5.1.1,system-mingw, windows-latest)	8m 4s
Build (4.08.x, ubuntu-latest, true)	1m 33s
Build (4.04.x, ubuntu-latest, true, true)	4m 31s
Build (4.02.x, ubuntu-latest, true)	3m 46s
	1h 54m 44s

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