Upgrade checkout action and add disk space cleanup

Updated checkout action version and added disk space cleanup step.

Signed-off-by: Julius von Kohout <[email protected]>

Author: juliusvonkohout

.github/workflows/pipeline_run_from_notebook.yaml

@@ -21,7 +21,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
+
+    - name: Free up disk space
+      run: ./tests/free-disk-space.sh
 
     - name: Install KinD, Create KinD cluster and Install kustomize
       run: ./tests/install_KinD_create_KinD_cluster_install_kustomize.sh