Stop pinning Gradle version in tests

Author: simonlebras

plugin-gradle/src/test/java/com/diffplug/gradle/spotless/ConfigurationCacheTest.java

@@ -24,7 +24,7 @@ public class ConfigurationCacheTest extends GradleIntegrationHarness {
 	@Override
 	public GradleRunner gradleRunner() throws IOException {
 		setFile("gradle.properties").toContent("org.gradle.unsafe.configuration-cache=true");
-		return super.gradleRunner().withGradleVersion(GradleVersionSupport.MINIMUM.version);
+		return super.gradleRunner();
 	}
 
 	@Test

plugin-gradle/src/test/java/com/diffplug/gradle/spotless/IdeHookTest.java

@@ -88,7 +88,7 @@ private void runWith(boolean configurationCache, String... arguments) throws IOE
 	protected GradleRunner gradleRunner(boolean configurationCache) throws IOException {
 		if (configurationCache) {
 			setFile("gradle.properties").toContent("org.gradle.unsafe.configuration-cache=true");
-			return super.gradleRunner().withGradleVersion(GradleVersionSupport.MINIMUM.version);
+			return super.gradleRunner();
 		} else {
 			File gradleProps = new File(rootFolder(), "gradle.properties");
 			if (gradleProps.exists()) {

plugin-gradle/src/test/java/com/diffplug/gradle/spotless/NpmTestsWithoutNpmInstallationTest.java

@@ -182,9 +182,7 @@ void useNpmNextToConfiguredNodePluginFromNodeGradlePlugin() throws Exception {
 	public void supportsConfigurationCache() throws Exception {
 		setFile("build.gradle").toResource("com/diffplug/gradle/spotless/NpmTestsWithoutNpmInstallationTest_gradle_node_plugin_example_1.gradle");
 		setFile("test.ts").toResource("npm/prettier/config/typescript.dirty");
-		BuildResult spotlessApply = gradleRunner()
-				.withGradleVersion(GradleVersionSupport.MINIMUM.version)
-				.withArguments("--stacktrace", "--configuration-cache", "spotlessApply").build();
+		BuildResult spotlessApply = gradleRunner().withArguments("--stacktrace", "--configuration-cache", "spotlessApply").build();
 		Assertions.assertThat(spotlessApply.getOutput()).contains("BUILD SUCCESSFUL");
 		assertFile("test.ts").sameAsResource("npm/prettier/config/typescript.configfile_prettier_2.clean");
 	}

plugin-gradle/src/test/java/com/diffplug/gradle/spotless/ToggleOffOnTest.java

@@ -44,7 +44,7 @@ public GradleRunner gradleRunner() throws IOException {
 		if (useConfigCache) {
 			setFile("gradle.properties").toLines("org.gradle.unsafe.configuration-cache=true",
 					"org.gradle.configuration-cache=true");
-			return super.gradleRunner().withGradleVersion(GradleVersionSupport.MINIMUM.version);
+			return super.gradleRunner();
 		} else {
 			return super.gradleRunner();
 		}