increased benchmark timeout to 30 to fit all benchmarks

Author: chernser

.github/workflows/benchmarks.yml

@@ -24,7 +24,7 @@ jobs:
     if: ${{ startsWith(github.repository, 'ClickHouse/') }}
     name: "Mininal JMH Benchmarks"
     runs-on: "ubuntu-latest"
-    timeout-minutes: 20
+    timeout-minutes: 30
     steps:
       - name: Check out Git repository
         uses: actions/checkout@v4