Refs #33476 -- Prevented formatting of .py-tpl files with black by pre-commit.

When using `pre-commit run --all-files`, files explicitly passed to
black are processed even if they don't match the `include` configuration
option. For some reason, (only) one of the `*.py-tpl` files is picked up
by pre-commit. We can avoid this by explicitly excluding certain
patterns of files for the black hook in the pre-commit configuration.

.pre-commit-config.yaml

@@ -3,6 +3,7 @@ repos:
     rev: 22.1.0
     hooks:
     - id: black
+      exclude: \.py-tpl$
   - repo: https://github.com/PyCQA/isort
     rev: 5.9.3
     hooks: