Here we cache again

Author: AnHeuermann

.github/workflows/test_julia.yml

@@ -61,6 +61,9 @@ jobs:
         with:
           version: ${{ matrix.julia-version }}
 
+      - name: Cache Julia
+        uses: julia-actions/cache@v2
+
       - name: Setup OpenModelica
         uses: OpenModelica/setup-openmodelica@v1
         with:
@@ -82,6 +85,7 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          cache: 'pip'            # caching pip dependencies
 
       - name: Install Python dependencies
         shell: bash