chore: Enable builds on more OSes, disable debug

Author: TimothyJones

.github/workflows/gradle.yml

@@ -15,18 +15,20 @@ on:
 
 jobs:
   build:
-
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        java-version: [ 17, 20 ]
+        os: [ macos-latest, ubuntu-latest, windows-latest ]
     permissions:
       contents: read
 
     steps:
     - uses: actions/checkout@v4
-    - name: Set up JDK 17
+    - name: Set up JDK
       uses: actions/setup-java@v4
       with:
-        java-version: '17'
-        distribution: 'temurin'
+        java-version: ${{ matrix.java-version }}
     - name: Set up node
       uses: actions/setup-node@v4
       with: