GraalVM native image

[bentsherman]

Now that the language server is pure Java and doesn't depend on the entire Nextflow runtime, it should be feasible to generate a native image like we do for the Wave and Tower CLIs.

This will allow the language server to be run without a JVM already installed. However, we'll need to make sure we can still support all the major platforms (linux, macOS, windows).

[pditommaso]

Note that native image creation is also possible with Groovy, the only side effect the resulting binary is bigger. Graal supports both linux, macOS, windows (and even wasm!). It's true however we have seen weird error with old linux distributions