test: show limitation installing multi-context libs #26913

Job	Run time
Coq 8.16.1	9m 11s
Coverage (4.14.x)	11m 34s
Create local opam switch (macos-latest, 5)	7m 43s
Build (macos-latest, 4.14.x)	18m 17s
Create local opam switch (macos-latest, 4.14)	6m 11s
Build (ubuntu-latest, 4.14.x)	10m 44s
MSVC 4.14.0 / windows_x86	10m 20s
Create local opam switch (ubuntu-latest, 5)	6m 8s
Documentation	42s
Build (windows-latest, 4.14.x)	6m 20s
MSVC 4.14.0 / windows_x86_64	9m 50s
Create local opam switch (ubuntu-latest, 4.14)	5m 18s
Build (ocaml-variants.5.3.0+trunk, ubuntu-latest, true)	2m 26s
Build (5.1.x, ubuntu-latest, true)	2m 37s
Format	2m 24s
Build monorepo benchmark docker image	2m 7s
Build (5.1.x, macos-latest, true)	3m 23s
Nix (macos-latest)	2m 29s
Build (4.14.x, macos-13, true)	5m 12s
Nix (ubuntu-latest)	1m 2s
Build (4.13.x, ubuntu-latest, true)	2m 34s
Build (4.08.x, ubuntu-latest, true)	2m 26s
Build (4.04.x, ubuntu-latest, true, true)	5m 46s
Build (4.02.x, ubuntu-latest, true)	4m 48s
	2h 19m 32s

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