GH-226 - Introduce dedicated CI build for pull requests.

That new build skips the attempt to deploy artifacts to Artifactory.

.github/workflows/build-prs.yaml

@@ -0,0 +1,25 @@
+name: PR Build
+
+on:
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    name: Build project
+    runs-on: ubuntu-latest
+
+    steps:
+
+    - name: Check out sources
+      uses: actions/checkout@v3
+
+    - name: Set up JDK 17
+      uses: actions/setup-java@v3
+      with:
+        distribution: 'temurin'
+        java-version: 17
+        cache: 'maven'
+
+    - name: Build with Maven
+      run: ./mvnw -B

.github/workflows/build.yaml

@@ -3,8 +3,6 @@ name: CI Build
 on:
   push:
     branches: [ main ]
-  pull_request:
-    branches: [ main ]
 
 jobs:
   build: