gh-65701: document that freeze doesn't work with framework builds on macOS (#113352)

* gh-65701: document that freeze doesn't work with framework builds on macOS

The framework install is inherently incompatible with freeze. Document
that that freeze doesn't work with framework builds and bail out
early when trying to run freeze anyway.

Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>