Update python-app.yml

Author: priyagupta108

.github/workflows/python-app.yml

@@ -33,7 +33,7 @@ jobs:
       uses: actions/cache@v4
       with:
         path: ~/.cache/pip
-        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+        key: ${{ runner.os }}-pip-${{ hashFiles('requirements/*.txt') }}
         restore-keys: |
           ${{ runner.os }}-pip-