dataconnect_demo_app.yml: fix "minimalApp" to "demo"

Author: dconeybe

.github/workflows/dataconnect_demo_app.yml

@@ -109,7 +109,7 @@ jobs:
           --no-daemon \
           ${{ (inputs.gradleInfoLog && '--info') || '' }} \
           --profile \
-          -PdataConnect.minimalApp.firebaseCommand=${{ env.FDC_FIREBASE_COMMAND }} \
+          -PdataConnect.demo.firebaseCommand=${{ env.FDC_FIREBASE_COMMAND }} \
           assemble test
 
       - uses: actions/upload-artifact@4cec3d8aa04e39d1a68397de0c4cd6fb9dce8ec1 # v4.6.1