Find deprecated mailcap module usage

Proprietary

The mailcap module was deprecated in Python 3.11 and removed in Python 3.13. Use mimetypes module for MIME type handling.

org.openrewrite.python.migrate.FindMailcapModule
mod run . --recipe=org.openrewrite.python.migrate.FindMailcapModule

Install it once, then run it on every repository under the current directory. New to the Moderne CLI? Set it up.