Added hpi-builder.yml GitHub workflow

.github/workflows/hpi-builder.yml

@@ -0,0 +1,50 @@
+name: Jenkins plugin .hpi build
+
+# Workflow triggers: whenever code is pushed to the main branch or a pull request is opened against it
+
+on: [push, workflow_dispatch]
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Jenkins plugin code
+        uses: actions/checkout@v4
+
+      - name: Setup of environment
+        uses: ./.github/setup
+
+      - name: Check repository content
+        shell: bash
+        run: pwd && ls -la
+
+      - name: Maven wrapper
+        shell: bash
+        run: mvn wrapper:wrapper
+
+      - name: Test run
+        shell: bash
+        run: ./mvnw clean verify
+
+      - name: Set up Java
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '11'
+
+      - name: Build Jenkins Plugin into .hpi
+        shell: bash
+        run: ./mvnw clean compile hpi:hpi  # Build the plugin using Maven
+
+      - name: Verify content of target folder
+        shell: bash
+        run: pwd && ls -l target/
+
+      - name: Archive the Build Output
+        uses: actions/upload-artifact@v4
+        with:
+          name: Zowe zDevOps plugin
+          path: ./target/zdevops.hpi