MLServer changes from internal fork - deps and CI updates

[sakoush]

These are changes done internally on a private fork and include changes to CI and upgrading packages.

[sakoush]

failing error on CI is tests/cli/test_build.py::test_infer_custom_runtime[environment_yml]
it runs fine locally so we probably need to fix it later post this PR.

[jesse-c]

LGTM

For the failing error, that makes sense, especially if it's consistent on being that one.