adding more pipeline steps

.github/workflows/build-deploy.yml

@@ -18,5 +18,11 @@ jobs:
     steps:
       - name: Pulling git repo
         uses: actions/checkout@v2
-      - name: Say hi
-        run: echo "Hello, there."
+      - name: Install Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: "3.9"
+      - name: Update PIP
+        run: python -m pip install --upgrade pip
+      - name: Install dependencies
+        run: pip install -r requirements.txt