Add "tools install" commands #29126

Job	Run time
Format	1m 11s
Build (macos-latest, 5.1.x)	15m 16s
Build (ubuntu-latest, 5.1.x)	8m 48s
Coq 8.16.1	7m 21s
Coverage (5.1.x)	9m 35s
Documentation	54s
Build (ocaml-variants.5.3.0+trunk, ubuntu-latest, true)	1m 32s
Build (4.14.x, ubuntu-latest, true)	1m 29s
Build monorepo benchmark docker image	3m 56s
Nix (macos-latest)	2m 0s
Build (4.14.x, macos-latest, true)	3m 4s
Wasm_of_ocaml	10m 51s
Nix (ubuntu-latest)	54s
Build (5.1.x, macos-13, true)	3m 26s
Build (ocaml-base-compiler.4.14.2,system-msvc, windows-latest)	14m 14s
Build microbenchmarks	2m 41s
Create local opam switch (macos-latest, 5)	9m 28s
Create local opam switch (macos-latest, 4.14)	6m 44s
Build (ocaml-base-compiler.5.1.1,system-mingw, windows-latest)	8m 12s
Create local opam switch (ubuntu-latest, 5)	4m 57s
Build (4.08.x, ubuntu-latest, true)	1m 30s
Create local opam switch (ubuntu-latest, 4.14)	5m 15s
Build (4.04.x, ubuntu-latest, true, true)	4m 37s
Build (4.02.x, ubuntu-latest, true)	3m 58s
	2h 11m 53s

Provide feedback