Added fastapi depoyment actions

.github/workflows/deploy_fastapi_backend.yml

@@ -0,0 +1,36 @@
+name: Serverless Deploy
+
+on:
+  push:
+    branches: [ dev, prod ]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.10
+
+      - name: Install Serverless
+        run: npm install -g serverless
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements/base.txt
+
+      - name: AWS credentials
+        uses: aws-actions/configure-aws-credentials@v1
+        with:
+          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+          aws-region: eu-west-2
+
+      - name: Deploy to AWS Lambda via Serverless
+        run: sls deploy --stage ${{ github.ref_name }}