move google-api-core/googleapis-common-protos depdencies to extras

[cburroughs]

Is your feature request related to a problem? Please describe.
Feast currently requires

    "google-api-core>=1.23.0,<3",
    "googleapis-common-protos>=1.52.*,<2",

As core dependencies. I'd expect google cloud apis to not be a requirement to use (for example) AWS and my naive grepping of the code didn't turn up any obvious counter examples. From the git blame chain it looks like there were not yet any precedents for extras when these were added: https://github.com/feast-dev/feast/blame/0da112b363b6e67a95ead3d95c209be301db56a5/sdk/python/setup.py

Describe the solution you'd like

I presume they could move to GCP_REQUIRED or another section.

Additional context
I noticed this because where adding feast as a dependency to an existing project has caused pip's resolve to take 10s of minutes. Based on the the plethora of INFO: pip is looking at multiple versions of google-api-core to determine which version is compatible with other requirements. This could take a while. I suspect these are particularly tricky dependencies for pip satisfy.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.