Update flake8 exclusion path for regex_parser.py in GitHub Actions workflow

Author: Buba98

.github/workflows/python-package.yml

@@ -32,7 +32,7 @@ jobs:
         run: |
           # Conditionally exclude parser/regex_parser.py for Python 3.9
           if [ "${{ matrix.python-version }}" = "3.9" ]; then
-            flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics --exclude=parser/regex_parser.py
+            flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics --exclude=regex_enumerator/parser/regex_parser.py
           else
             flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
           fi