Use common fat-build workflow.

.github/workflows/fat-build.yml

@@ -0,0 +1,24 @@
+name: Fat JAR Build
+
+on:
+  workflow_call:
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: 17
+          distribution: temurin
+          cache: "gradle"
+      - name: Run Build
+        run: ./gradlew shadowJar
+      - run: mv build/libs/piped-*-all.jar piped.jar
+      - uses: actions/upload-artifact@v3
+        with:
+          name: piped.jar
+          path: piped.jar