Merge pull request #285 from tkobayas/incubator-kie-benchmarks-284-remove-java11

[incubator-kie-benchmarks-284] Remove GHA Java 11

Author: tkobayas

.github/workflows/pull_request.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [11, 17]
+        java: [17]
       fail-fast: false
     steps:
       - name: Check  out Git repository