PEP 695: Mark as Final

[hugovk]

• Final implementation has been merged (including tests and docs)
• PEP matches the final implementation
• Any substantial changes since the accepted version approved by the SC/PEP delegate
• Pull request title in appropriate format (PEP 123: Mark Final)
• Status changed to Final (and Python-Version is correct)
• Canonical docs/spec linked with a canonical-doc directive
  (or canonical-pypa-spec for packaging PEPs,
  or canonical-typing-spec for typing PEPs)

Helps #3579 and #2872.

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📚 Documentation preview 📚: https://pep-previews--3675.org.readthedocs.build/

[JelleZijlstra]

This also needs to point to runtime docs (as it involved a major grammar change). Maybe https://docs.python.org/3/reference/compound_stmts.html#type-params and https://docs.python.org/3/reference/simple_stmts.html#type.

[JelleZijlstra]

And also https://docs.python.org/3/reference/executionmodel.html#annotation-scopes

[hugovk]

Thanks, updated! And thanks to the original authors of those sections for already adding the ref anchors! :)

[JelleZijlstra]

Thanks! Thinking about it some more, maybe we should also link to the typing spec about the type statement? https://typing.readthedocs.io/en/latest/spec/aliases.html#type-statement

cc @erictraut too