Allow CLI flags thru the cmd

[cdaringe]

Problem

I need to add --flags and args to my process, but no such provision exists.

Discussion

nx-plugins/libs/nx-esbuild/src/executors/serve/executor.ts

Line 89 in 980cdc1

],

Can we add ...(options.args || []) to the final bit? Or however we get args thru with nodemon. For instance, my node build via esbuild needs --port=xyz and --hostname=xyz etc. Some i can pass thru the env, but not all

[JakeGinnivan]

Sounds good, if I get a chance will add it, otherwise happy to accept a PR for this