Log Message:
py-gidgethub: update to 5.3.0.

5.3.0
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- Add support passing ``extra_headers`` when making requests
  (`PR #192 <https://github.com/brettcannon/gidgethub/pull/192>`_)

- Add a getstatus() method for APIs that do not return content.
  (`PR #194 <https://github.com/brettcannon/gidgethub/pull/194>`_)

5.2.1
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- Fix cgi and importlib_resources deprecations.
  (`PR #185 <https://github.com/brettcannon/gidgethub/pull/185>`_)

- Add support for Python 3.11 and drop EOL Python 3.6
  (`PR #184 <https://github.com/brettcannon/gidgethub/pull/184>`_)

5.2.0
-----

- Make the minimum version of PyJWT be v2.4.0.