Set TARGET_JVM_VERSION_ATTRIBUTE as another default attribute

Add something like the following [here](https://github.com/gradlex-org/java-module-packaging/blob/main/src/main/java/org/gradlex/javamodule/packaging/JavaModulePackagingExtension.java#L254):

```
int jdkVersion = java.toolchain.languageVersion.map { it.asInt() }
attributes.attributeProvider(TargetJvmVersion.TARGET_JVM_VERSION_ATTRIBUTE, jdkVersion)
```