Update tested Gradle versions

gradle-plugins/compose/build.gradle.kts

@@ -89,11 +89,9 @@ val jar = tasks.named<Jar>("jar") {
     this.duplicatesStrategy = DuplicatesStrategy.INCLUDE
 }
 
-// __SUPPORTED_GRADLE_VERSIONS__
-//testGradleVersion("6.7.1") // min supported by kotlin 1.7.0 gradle plugin https://kotlinlang.org/docs/gradle.html
-// despite that, some tests didn't pass
-testGradleVersion("7.1.1")
-testGradleVersion("7.3.3")
+project.property("compose.tests.gradle.versions")
+    .toString().split(",")
+    .forEach { testGradleVersion(it.trim()) }
 
 val javaHomeForTests: String? = when {
     // __COMPOSE_NATIVE_DISTRIBUTIONS_MIN_JAVA_VERSION__

gradle-plugins/gradle.properties

@@ -14,6 +14,8 @@ compose.tests.js.compiler.compatible.kotlin.version=1.7.20
 # https://developer.android.com/jetpack/androidx/releases/compose-kotlin
 compose.tests.androidx.compiler.version=1.1.1
 compose.tests.androidx.compiler.compatible.kotlin.version=1.6.10
+# __SUPPORTED_GRADLE_VERSIONS__
+compose.tests.gradle.versions=7.0.2, 7.5.1
 
 # A version of Gradle plugin, that will be published,
 # unless overridden by COMPOSE_GRADLE_PLUGIN_VERSION env var.