pkg: add binary dev tools repo #28687

Job	Run time
Coverage (5.1.x)	9m 49s
Build microbenchmarks	2m 22s
Build (macos-latest, 5.1.x)	14m 50s
Coq 8.16.1	7m 17s
Build (ubuntu-latest, 5.1.x)	9m 11s
Create local opam switch (macos-latest, 5)	5m 29s
Build (ocaml-variants.5.3.0+trunk, ubuntu-latest, true)	5m 7s
Documentation	50s
Create local opam switch (macos-latest, 4.14)	5m 46s
Format	1m 2s
Build (4.14.x, ubuntu-latest, true)	1m 48s
Create local opam switch (ubuntu-latest, 5)	5m 16s
Build (4.14.x, macos-latest, true)	2m 16s
Build monorepo benchmark docker image	3m 42s
Create local opam switch (ubuntu-latest, 4.14)	5m 5s
Nix (macos-latest)	2m 0s
Build (5.1.x, macos-13, true)	4m 44s
Nix (ubuntu-latest)	53s
Build (ocaml-base-compiler.4.14.2,system-msvc, windows-latest)	16m 11s
Build (ocaml-base-compiler.5.1.1,system-mingw, windows-latest)	10m 16s
Build (4.08.x, ubuntu-latest, true)	1m 59s
Build (4.04.x, ubuntu-latest, true, true)	5m 0s
Build (4.02.x, ubuntu-latest, true)	4m 18s
	2h 5m 11s

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