Add PR validation workflow

Author: jeppevinkel

.github/workflows/pr-validation.yaml

@@ -0,0 +1,20 @@
+name: PR Validation
+
+on:
+  pull_request:
+    branches: [ "master", "develop" ]
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        ref: ${{ github.sha }}
+        fetch-depth: 0
+
+    - name: Build the Docker image
+      run: |
+              docker build . --file ./AiHelpBot/Dockerfile