Bump pre-commit from 2.20.0 to 2.21.0 (#40)

Bumps [pre-commit](https://github.com/pre-commit/pre-commit) from 2.20.0 to 2.21.0.
- [Release notes](https://github.com/pre-commit/pre-commit/releases)
- [Changelog](https://github.com/pre-commit/pre-commit/blob/main/CHANGELOG.md)
- [Commits](https://github.com/pre-commit/pre-commit/compare/v2.20.0...v2.21.0)

---
updated-dependencies:
- dependency-name: pre-commit
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

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

requirements-dev.txt

@@ -292,9 +292,9 @@ pluggy==1.0.0 \
     --hash=sha256:4224373bacce55f955a878bf9cfa763c1e360858e330072059e10bad68531159 \
     --hash=sha256:74134bbf457f031a36d68416e1509f34bd5ccc019f0bcc952c7b909d06b37bd3
     # via pytest
-pre-commit==2.20.0 \
-    --hash=sha256:51a5ba7c480ae8072ecdb6933df22d2f812dc897d5fe848778116129a681aac7 \
-    --hash=sha256:a978dac7bc9ec0bcee55c18a277d553b0f419d259dadb4b9418ff2d00eb43959
+pre-commit==2.21.0 \
+    --hash=sha256:31ef31af7e474a8d8995027fefdfcf509b5c913ff31f2015b4ec4beb26a6f658 \
+    --hash=sha256:e2f91727039fc39a92f58a588a25b87f936de6567eed4f0e673e0507edc75bad
     # via -r requirements-dev.in
 py==1.11.0 \
     --hash=sha256:51c75c4126074b472f746a24399ad32f6053d1b34b68d2fa41e558e6f4a98719 \
@@ -453,9 +453,7 @@ tenacity==6.3.1 \
 toml==0.10.2 \
     --hash=sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b \
     --hash=sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f
-    # via
-    #   pre-commit
-    #   pytest
+    # via pytest
 trio==0.22.0 \
     --hash=sha256:ce68f1c5400a47b137c5a4de72c7c901bd4e7a24fbdebfe9b41de8c6c04eaacf \
     --hash=sha256:f1dd0780a89bfc880c7c7994519cb53f62aacb2c25ff487001c0052bd721cdf0