Escape dots for file extension in pre-commit files regex

Signed-off-by: bentocin <[email protected]>

.pre-commit-hooks.yaml

@@ -4,21 +4,21 @@
   entry: poetry check
   language: python
   pass_filenames: false
-  files: ^(.*/)?pyproject.toml$
+  files: ^(.*/)?pyproject\.toml$
 
 - id: poetry-lock
   name: poetry-lock
   description: run poetry lock to update lock file
   entry: poetry lock
   language: python
   pass_filenames: false
-  files: ^(.*/)?(poetry.lock|pyproject.toml)$
+  files: ^(.*/)?(poetry\.lock|pyproject\.toml)$
 
 - id: poetry-export
   name: poetry-export
   description: run poetry export to sync lock file with requirements.txt
   entry: poetry export
   language: python
   pass_filenames: false
-  files: ^(.*/)?poetry.lock$
+  files: ^(.*/)?poetry\.lock$
   args: ["-f", "requirements.txt", "-o", "requirements.txt"]