[stubsabot] Bump gevent to 25.4.*

Release: https://pypi.org/pypi/gevent/25.4.2
Homepage: http://www.gevent.org/
Repository: https://github.com/gevent/gevent
Typeshed stubs: https://github.com/python/typeshed/tree/main/stubs/gevent
Changelog: https://www.gevent.org/changelog.html
Diff: gevent/gevent@24.11.1...25.4.2

Stubsabot analysis of the diff between the two releases:
 - Total lines of Python code added: 32035.
 - Total lines of Python code deleted: 384.

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Author: stubsabot

stubs/gevent/METADATA.toml

@@ -1,4 +1,4 @@
-version = "24.11.*"
+version = "25.4.*"
 upstream_repository = "https://github.com/gevent/gevent"
 requires = ["types-greenlet", "types-psutil"]