refactor(pkg): remove [Model] alias #29647

Job	Run time
Build (macos-latest, 5.1.x)	8m 8s
Build (ubuntu-latest, 5.1.x)	5m 28s
Build (ocaml-variants.5.4.0+trunk, ubuntu-latest, true)	2m 21s
Build (4.14.x, ubuntu-latest, true)	1m 25s
Build (4.14.x, macos-latest, true)	2m 21s
Build (5.1.x, macos-13, true)	3m 46s
Build (ocaml-base-compiler.4.14.2,system-msvc, windows-latest)	14m 40s
Build (ocaml-base-compiler.5.1.1,system-mingw, windows-latest)	8m 14s
Coq 8.16.1	6m 42s
Documentation	59s
Build (4.08.x, ubuntu-latest, true)	1m 36s
Create local opam switch (macos-latest, 5)	5m 44s
Build (4.04.x, ubuntu-latest, true, true)	4m 32s
Create local opam switch (macos-latest, 4.14)	5m 15s
Build (4.02.x, ubuntu-latest, true)	3m 54s
Format	1m 6s
Create local opam switch (ubuntu-latest, 5)	4m 49s
Build monorepo benchmark docker image	3m 40s
Create local opam switch (ubuntu-latest, 4.14)	5m 2s
Nix (macos-latest)	2m 0s
Wasm_of_ocaml	10m 7s
Nix (ubuntu-latest)	56s
Build microbenchmarks	2m 34s
	1h 45m 19s

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