refactor(pkg): switch to arrays for literals in all clauses #29579

Job	Run time
Coq 8.16.1	7m 9s
Build (macos-latest, 5.1.x)	16m 12s
Build (ubuntu-latest, 5.1.x)	8m 35s
Build (ocaml-variants.5.4.0+trunk, ubuntu-latest, true)	1m 26s
Build (4.14.x, ubuntu-latest, true)	1m 28s
Documentation	59s
Build (4.14.x, macos-latest, true)	2m 57s
Build (5.1.x, macos-13, true)	3m 49s
Build (ocaml-base-compiler.4.14.2,system-msvc, windows-latest)	14m 36s
Format	1m 8s
Build (ocaml-base-compiler.5.1.1,system-mingw, windows-latest)	8m 10s
Build (4.08.x, ubuntu-latest, true)	1m 8s
Nix (macos-latest)	1m 57s
Build (4.04.x, ubuntu-latest, true, true)	4m 35s
Nix (ubuntu-latest)	53s
Build (4.02.x, ubuntu-latest, true)	4m 5s
Wasm_of_ocaml	10m 29s
Build monorepo benchmark docker image	3m 40s
Build microbenchmarks	2m 30s
Create local opam switch (macos-latest, 5)	6m 30s
Create local opam switch (macos-latest, 4.14)	8m 11s
Create local opam switch (ubuntu-latest, 5)	4m 57s
Create local opam switch (ubuntu-latest, 4.14)	4m 54s
	2h 0m 18s

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