Upgrade to Native Build Tools Plugin 0.9.21

Closes gh-35055

gradle.properties

@@ -6,6 +6,6 @@ org.gradle.jvmargs=-Xmx2g -Dfile.encoding=UTF-8
 
 kotlinVersion=1.7.22
 tomcatVersion=10.1.7
-nativeBuildToolsVersion=0.9.20
+nativeBuildToolsVersion=0.9.21
 
 kotlin.stdlib.default.dependency=false

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/plugin/NativeImagePluginAction.java

@@ -24,7 +24,6 @@
 import org.graalvm.buildtools.gradle.dsl.GraalVMExtension;
 import org.graalvm.buildtools.gradle.dsl.GraalVMReachabilityMetadataRepositoryExtension;
 import org.gradle.api.Action;
-import org.gradle.api.GradleException;
 import org.gradle.api.Plugin;
 import org.gradle.api.Project;
 import org.gradle.api.artifacts.Configuration;
@@ -96,15 +95,6 @@ private void configureTestNativeBinaryClasspath(Project project, SourceSetContai
 	private GraalVMExtension configureGraalVmExtension(Project project) {
 		GraalVMExtension extension = project.getExtensions().getByType(GraalVMExtension.class);
 		extension.getToolchainDetection().set(false);
-		extension.getBinaries().configureEach((options) -> {
-			try {
-				options.getRequiredVersion().convention("22.3");
-			}
-			catch (NoSuchMethodError ex) {
-				throw new GradleException("Incompatible version of org.graalvm.buildtools.native plugin. "
-						+ "Please upgrade to 0.9.17 or later.");
-			}
-		});
 		return extension;
 	}
 

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/src/test/java/org/springframework/boot/gradle/plugin/NativeImagePluginActionIntegrationTests.java

@@ -115,12 +115,6 @@ void classesGeneratedDuringAotTestProcessingAreOnTheTestNativeImageClasspath() {
 				projectPath("build/resources/aotTest"), projectPath("build/generated/aotTestClasses"));
 	}
 
-	@TestTemplate
-	void nativeImageBinariesRequireGraal22Dot3() {
-		BuildResult result = this.gradleBuild.build("requiredGraalVersion");
-		assertThat(result.getOutput()).contains("custom: 22.3", "main: 22.3", "test: 22.3");
-	}
-
 	private String projectPath(String path) {
 		try {
 			return new File(this.gradleBuild.getProjectDir(), path).getCanonicalPath();