Attempt to fix NestedJarFile file lock issues on Windows

Update `NestedJarFile.close()` to call `super.close()` so that the outer
jar file is closed and files can hopefully be deleted on Windows.

See gh-37668

spring-boot-project/spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/jar/NestedJarFile.java

@@ -373,6 +373,7 @@ public class NestedJarFile extends JarFile {
 
 	@Override
 	public void close() throws IOException {
+		super.close();
 		if (this.closed) {
 			return;
 		}