Added workflow

Author: Pascalpex

.github/workflows/build.yml

@@ -0,0 +1,25 @@
+name: Build PexNPC
+on: [ push, pull_request ]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/[email protected]
+      - name: Set up JDK 21
+        uses: actions/[email protected]
+        with:
+          java-version: 21.0.5
+          distribution: 'temurin'
+      - name: Configure Git
+        run: |
+          git config --global user.email "[email protected]"
+          git config --global user.name "Github Actions"
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+      - name: Build
+        run: ./gradlew build
+      - name: Upload Jar
+        uses: actions/[email protected]
+        with:
+          name: PexNPC
+          path: build/libs/PexNPC-2.0.jar