Bump cython from 0.29.24 to 0.29.25 (#6395)

* Bump cython from 0.29.24 to 0.29.25

Bumps [cython](https://github.com/cython/cython) from 0.29.24 to 0.29.25.
- [Release notes](https://github.com/cython/cython/releases)
- [Changelog](https://github.com/cython/cython/blob/master/CHANGES.rst)
- [Commits](cython/cython@0.29.24...0.29.25)

---
updated-dependencies:
- dependency-name: cython
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

* Recompile requirements/constraints.txt

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: dependabot[bot] <dependabot[bot]@users.noreply.github.com>

requirements/constraints.txt

@@ -55,7 +55,7 @@ cryptography==36.0.0 ; platform_machine != "i686"
     #   -r requirements/test.txt
     #   pyjwt
     #   trustme
-cython==0.29.24
+cython==0.29.25
     # via -r requirements/cython.txt
 distlib==0.3.3
     # via virtualenv

requirements/cython.txt

@@ -1,3 +1,3 @@
 -r multidict.txt
 -r typing-extensions.txt  # required for parsing aiohttp/hdrs.py by tools/gen.py
-cython==0.29.24
+cython==0.29.25