Bump pre-commit from 2.8.1 to 2.8.2 in /.github/workflows (#29)

Bumps [pre-commit](https://github.com/pre-commit/pre-commit) from 2.8.1 to 2.8.2.
- [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@v2.8.1...v2.8.2)

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

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

.github/workflows/constraints.txt

@@ -1,2 +1,2 @@
 pip==20.2.4
-pre-commit==2.8.1
+pre-commit==2.8.2