Remove 7.6.4 from cross-version testing as it is flaky on CI

Isse: Timeout waiting to lock kotlin-dsl

Author: jjohannes

.github/workflows/cross-version-tests.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        gradleVersion: ["6.8.3", "6.9.4", "7.0.2", "7.6.4", "8.0.2"]
+        gradleVersion: ["6.8.3", "6.9.4", "7.0.2", "8.0.2"]
     steps:
       - name: git clone
         uses: actions/checkout@v4

build.gradle.kts

@@ -76,7 +76,7 @@ dependencies {
 
 testing.suites.named<JvmTestSuite>("test") {
     useJUnitJupiter()
-    listOf("6.8.3", "6.9.4", "7.0.2", "7.6.4", "8.0.2").forEach { gradleVersionUnderTest ->
+    listOf("6.8.3", "6.9.4", "7.0.2", "8.0.2").forEach { gradleVersionUnderTest ->
         targets.register("test${gradleVersionUnderTest}") {
             testTask {
                 group = LifecycleBasePlugin.VERIFICATION_GROUP