fix: Adding python package caching

.github/workflows/python-app.yml

@@ -23,6 +23,7 @@ jobs:
       uses: actions/setup-python@v3
       with:
         python-version: "3.12"
+        cache: 'pip' # caching pip dependencies
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
@@ -45,6 +46,7 @@ jobs:
         uses: actions/setup-python@v3
         with:
           python-version: "3.12"
+          cache: 'pip' # caching pip dependencies
       - name: Checkout
         uses: actions/checkout@v1
       - name: Install mypy