build(deps-dev): bump pre-commit from 2.9.3 to 2.10.0 in /backend (#762)

Bumps [pre-commit](https://github.com/pre-commit/pre-commit) from 2.9.3 to 2.10.0.
- [Release notes](https://github.com/pre-commit/pre-commit/releases)
- [Changelog](https://github.com/pre-commit/pre-commit/blob/master/CHANGELOG.md)
- [Commits](pre-commit/pre-commit@v2.9.3...v2.10.0)

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

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

Author: dependabot[bot]

backend/requirements-dev.txt

@@ -1,5 +1,5 @@
 fakeredis==1.4.5
-pre-commit==2.9.3
+pre-commit==2.10.0
 pytest==6.2.2
 pytest-responses==0.4.0
 responses==0.12.1