microservices-micronaut-hello-rest-gradle job: increase timeout limit

Author: olyagpl

.github/workflows/microservices-micronaut-hello-rest-gradle.yml

@@ -13,7 +13,7 @@ jobs:
   run:
     name: Run 'microservices/micronaut-hello-rest-gradle'
     runs-on: ubuntu-latest
-    timeout-minutes: 15
+    timeout-minutes: 30
     steps:
       - uses: actions/checkout@v6
       - uses: graalvm/setup-graalvm@v1