* Revise JS support for regular JVM
Turns out that we just need to have `org.graalvm.sdk:graal-sdk` and `org.graalvm.js:js`
dependencies for regular JVM to enable JavaScript support for Spring Integration Scripting module
* Add respective `providedImplementation` dependencies
* Remove `@EnabledIfSystemProperty` from unit tests
* Mention those dependencies in the doc
* Rework sentence in the doc for better English
Co-authored-by: Gary Russell <grussell@vmware.com>
Co-authored-by: Gary Russell <grussell@vmware.com>