DO NOT MERGE. Reduce the matrix for testing purposes

Author: SamBarker

.github/workflows/ci.yml

@@ -74,10 +74,10 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        version: ["v1_20","v1_19","v1_18","v1_17","v1_16"]
+        version: ["v1_20"]
         namespace: ["default","flink"]
-        mode: ["native", "standalone"]
-        java-version: [ 11, 17, 21 ]
+        mode: ["native" ]
+        java-version: [ 21 ]
         http-client: [ "okhttp" ]
         test:
           - test_application_kubernetes_ha.sh

flink-kubernetes-operator/pom.xml

@@ -39,7 +39,7 @@ under the License.
             --add-opens=java.base/java.util=ALL-UNNAMED
         </surefire.module.config>
         <!-- valid options can be checked at https://central.sonatype.com/search?q=kubernetes-httpclient- currently: okhttp, jdk, jetty, vertx -->
-        <fabric8.httpclinent.impl>okhttp</fabric8.httpclinent.impl>
+        <fabric8.httpclinent.impl>vertx</fabric8.httpclinent.impl>
     </properties>
 
     <dependencies>