Update github actions

Add datastore emulator into github action pipeline.

Author: splasky

.github/workflows/python-self-hosted.yaml

@@ -19,11 +19,28 @@ jobs:
       uses: actions/setup-python@v5
       with:
         python-version: '3.13'
+    
+    - name: Install datastore emulator 
+      run: |
+        if ! command -v gcloud &> /dev/null; then
+          echo "Installing Google Cloud SDK..."
+          curl -O https://dl.google.com/dl/cloudsdk/channels/rapid/downloads/google-cloud-cli-linux-x86_64.tar.gz
+          tar -xf google-cloud-cli-linux-x86_64.tar.gz
+          yes | ./google-cloud-sdk/install.sh
+          yes | gcloud beta emulators datastore env-init
+        else
+          echo "gcloud already installed"
+        fi
+        gcloud version
 
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -r requirements.txt
+        if [ -f requirements.txt ]; then
+          pip install -r requirements.txt
+        else
+          echo "No requirements.txt found"
+        fi
 
     - name: Run tests
       run: |