Bump pre-commit from 2.9.0 to 2.9.3 in /.github/workflows (#88)

Bumps [pre-commit](https://github.com/pre-commit/pre-commit) from 2.9.0 to 2.9.3.
- [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@v2.9.0...v2.9.3)

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

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

{{cookiecutter.project_name}}/.github/workflows/constraints.txt

@@ -1,5 +1,5 @@
 pip==20.3.1
-pre-commit==2.9.0
+pre-commit==2.9.3
 black==20.8b1
 flake8==3.8.4
 reorder-python-imports==2.3.6