chore: add gh action to test docker builds against PRs (#10892)

- Add GitHub action to test docker builds for internal/external PR's
- This PR builds the image on both amd64 and arm64 runners for every PR
- This also reduces the build time by 70% (50mins to 15mins)

.github/workflows/test_docker_build.yml

@@ -0,0 +1,40 @@
+name: Test Docker Build
+
+on:
+  pull_request:
+    branches:
+      - develop
+      - master
+  workflow_dispatch:
+
+jobs:
+  test-build:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - platform: linux/amd64
+            runner: ubuntu-latest
+          - platform: linux/arm64
+            runner: ubuntu-22.04-arm
+    runs-on: ${{ matrix.runner }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: docker/Dockerfile
+          platforms: ${{ matrix.platform }}
+          push: false
+          load: false
+          cache-from: type=gha
+          cache-to: type=gha,mode=max