Update ubuntu.yml

.github/workflows/ubuntu.yml

@@ -1,18 +1,23 @@
+# This workflow will build a Swift project
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-swift
+
 name: Ubuntu
 
 on:
   push:
-    branches: [ "main" ]
-  pull_request:
-    branches: [ "main" ]
+    branches: ["**"]
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     steps:
-    - uses: actions/checkout@v3
-    - name: Build
-      run: swift build -v
-    - name: Run tests
-      run: swift test -v
+      - uses: compnerd/gha-setup-swift@main
+        with:
+          branch: swift-6.0-release
+          tag: 6.0-RELEASE
+      - uses: actions/checkout@v3
+      - name: Build for release
+        run: swift build -v -c release
+      - name: Test
+        run: swift test -v