System tries to update to 5.0.0

[mseri]

On one of my computers (iMac M1) I get the following:

$ opam upgrade
Everything as up-to-date as possible (run with --verbose to show unavailable upgrades).

The following packages are not being upgraded because the new versions conflict with other installed packages:
  - ocaml.5.0.0
However, you may "opam upgrade" these packages explicitly, which will ask permission to downgrade or uninstall the conflicting
packages.
Nothing to do.

I don't see a reason for wanting to install 5:

$ opam switch invariant
["ocaml-base-compiler" {= "4.14.0"} | "ocaml-system" {= "4.14.0"}]

Te version is

$ opam --version
2.1.0

I will not have access to the machine until May 9, I will add the config report as soon as I can. In the meantime I thought it would be useful to add this here in case other people have the same problem and can post their opam config report