melange: update to 5.0.1 (#1927) #5680

Job	Run time
Native packages (Linux, OCaml 4_14)	2m 14s
Native (Top-level) packages (ubuntu-latest)	1m 33s
Native packages (Linux, OCaml 5_1)	1m 53s
Native (Top-level) packages (macos-13)	3m 54s
Native packages (macOS (macos-13), OCaml 5_1)	21m 54s
Native packages (Linux, OCaml 5_2)	2m 1s
arm64 packages (OCaml 4_14)	1m 33s
Native (Top-level) packages (macos-14)	2m 8s
Native packages (macOS (macos-13), OCaml 5_2)	26m 20s
Native packages (Linux, OCaml 5_3)	4m 44s
musl packages (OCaml 4_14)	1m 33s
Native packages (macOS (macos-13), OCaml 5_3)	20m 54s
arm64 packages (OCaml 5_1)	1m 30s
Native packages (macOS (macos-14), OCaml 4_14)	11m 1s
musl packages (OCaml 5_1)	1m 34s
Native packages (macOS (macos-14), OCaml 5_1)	10m 58s
nix-fmt-check	1m 38s
arm64 packages (OCaml 5_2)	1m 29s
Native packages (macOS (macos-14), OCaml 5_2)	10m 25s
musl packages (OCaml 5_2)	1m 39s
Native packages (macOS (macos-14), OCaml 5_3)	12m 30s
arm64 packages (OCaml 5_3)	1m 35s
musl packages (OCaml 5_3)	1m 26s
	2h 26m 26s

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