Pass caplin repo secrets to build job

Author: rossdanderson

.github/workflows/build.yml

@@ -24,6 +24,9 @@ jobs:
 
       - name: Build
         run: ./gradlew classes
+        env:
+          CAPLIN_USERNAME: ${{ secrets.CAPLIN_USERNAME }}
+          CAPLIN_PASSWORD: ${{ secrets.CAPLIN_PASSWORD }}
 
       - name: Cache build artifacts
         uses: actions/cache@v4