Conditionally skip rolling upgrade test on major version change

Signed-off-by: Daniel Widdis <[email protected]>

.github/workflows/CI.yml

@@ -80,7 +80,7 @@ jobs:
           distribution: temurin
       - name: Build and Run Tests
         run: |
-          ./gradlew integTest yamlRestTest
+          ./gradlew integTest
   integMultiNodeTest:
     needs: [spotless, javadoc]
     strategy:

build.gradle

@@ -505,6 +505,7 @@ List<Provider<RegularFile>> plugins = [
 // Creates 2 test clusters with 3 nodes of the old version.
 2.times {i ->
     task "${baseName}#oldVersionClusterTask$i"(type: StandaloneRestIntegTestTask) {
+        onlyIf { isSameMajorVersion || (i == 1) }
         useCluster testClusters."${baseName}$i"
         filter {
             includeTestsMatching "org.opensearch.flowframework.bwc.*IT"
@@ -617,6 +618,11 @@ allprojects {
             }
         }
     }
+    // Needed for Gradle 9.0
+    tasks.withType(StandaloneRestIntegTestTask).configureEach {
+        testClassesDirs = sourceSets.test.output.classesDirs
+        classpath = sourceSets.test.runtimeClasspath
+    }
 }
 
 // Automatically sets up the integration test cluster locally