Stop using --report-unsupported-elements-at-runtime

This commit stop using the --report-unsupported-elements-at-runtime
deprecated option with GraalVM 25+.

Closes gh-35632

Author: sdeleuze

spring-context/src/main/java/org/springframework/context/aot/ContextAotProcessor.java

@@ -136,7 +136,6 @@ protected ClassNameGenerator createClassNameGenerator() {
 	protected List<String> getDefaultNativeImageArguments(String applicationClassName) {
 		List<String> args = new ArrayList<>();
 		args.add("-H:Class=" + applicationClassName);
-		args.add("--report-unsupported-elements-at-runtime");
 		args.add("--no-fallback");
 		return args;
 	}

spring-context/src/test/java/org/springframework/context/aot/ContextAotProcessorTests.java

@@ -111,7 +111,6 @@ private Consumer<Path> hasGeneratedAssetsForSampleApplication() {
 					.resolve("resource/META-INF/native-image/com.example/example/native-image.properties");
 			assertThat(nativeImagePropertiesFile).exists().isRegularFile().hasContent("""
 					Args = -H:Class=org.springframework.context.aot.ContextAotProcessorTests$SampleApplication \\
-					--report-unsupported-elements-at-runtime \\
 					--no-fallback
 					""");
 		};