refactor: Missing None return type hint on FeatureParser __init__ (ANN204)

- Detected through ruff

Author: kieran-ryan

src/pytest_bdd/parser.py

@@ -372,7 +372,7 @@ class FeatureParser:
         encoding (str): File encoding of the feature file to parse.
     """
 
-    def __init__(self, basedir: str, filename: str, encoding: str = "utf-8"):
+    def __init__(self, basedir: str, filename: str, encoding: str = "utf-8") -> None:
         self.abs_filename = os.path.abspath(os.path.join(basedir, filename))
         self.rel_filename = os.path.join(os.path.basename(basedir), filename)
         self.encoding = encoding