refactor: use [selection] instead of tuple (#11356) #29701

Job	Run time
Nix (macos-latest)	2m 5s
Build (macos-latest, 5.1.x)	12m 53s
Nix (ubuntu-latest)	53s
Build (ubuntu-latest, 5.1.x)	9m 12s
Documentation	56s
Build (ocaml-variants.5.4.0+trunk, ubuntu-latest, true)	1m 32s
Format	1m 6s
Build (4.14.x, ubuntu-latest, true)	1m 36s
Build (4.14.x, macos-latest, true)	2m 22s
Build (5.1.x, macos-13, true)	3m 40s
Build microbenchmarks	2m 28s
Build (ocaml-base-compiler.4.14.2,system-msvc, windows-latest)	13m 2s
Coq 8.16.1	7m 13s
Build (ocaml-base-compiler.5.1.1,system-mingw, windows-latest)	8m 24s
Build (4.08.x, ubuntu-latest, true)	2m 22s
Create local opam switch (macos-latest, 5)	5m 33s
Build (4.04.x, ubuntu-latest, true, true)	5m 39s
Build monorepo benchmark docker image	4m 5s
Create local opam switch (macos-latest, 4.14)	5m 54s
Build (4.02.x, ubuntu-latest, true)	5m 9s
Create local opam switch (ubuntu-latest, 5)	4m 52s
Create local opam switch (ubuntu-latest, 4.14)	4m 54s
Wasm_of_ocaml	11m 18s
	1h 57m 8s

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