fix: Makefile

Author: tmathern

Makefile

@@ -98,7 +98,7 @@ check-format:
 
 # Formats Python source code using autopep8 with aggressive settings
 format:
-	autopep8 --aggressive --aggressive --in-place src/c2pa/*.py
+	autopep8 --aggressive --aggressive --in-place src/c2pa/c2pa.py
 
 # Downloads the required native artifacts for the specified version
 download-native-artifacts: