[DO NOT MERGE] Removed < 1.66 for grpcio

[liferoad]

We can merge this after the Beam 2.64.0 release cut on March 19 to check whether grpcio still causes issues.

Fixes #34081

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[tvalentyn]

PTAL at test/lint errors.

[liferoad]

@tvalentyn let us skip pip check for lint.