Added Github Actions for testing PRs for Docker Builds (#85)

.github/workflows/docker-pr.yml

@@ -0,0 +1,27 @@
+name: Docker PR Build
+
+on:
+  pull_request:
+    branches: [development, main]
+
+jobs:
+  build_docker_image:
+    name: Build Docker image
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: "3.8"
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r src/requirements.txt
+
+      - name: Build Docker image
+        run: docker build -t eventyay-tickets:${{ github.sha }} .