cache pip

.github/workflows/lint_python.yml

@@ -16,6 +16,13 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: '3.11'
+      - name: Cache pip
+        uses: actions/cache@v4
+        with:
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
       - name: Install system dependencies
         run: |
           sudo apt-get update

.github/workflows/unit_tests.yml

@@ -21,6 +21,14 @@ jobs:
         with:
           python-version: '3.11'
 
+      - name: Cache pip
+        uses: actions/cache@v4
+        with:
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
+
       - name: Install system dependencies
         run: |
           sudo apt-get update