Improvements to the build system

[ibc]

Details

• Don't specify Python Invoke version.
• build.rs: Idiomaticvs improvements.
• npm-scripts.mjs: Use spawn instead of exec to run commands, so we can pass command and each argument separately.
• Honor alphabetical order in "files" in package.json and remove Makefile from it and worker/Cargo.toml.

Does this PR fix installation under paths with a double quote in a directly name?

No. I'm afraid there is no easy way to do that. For many reasons:

1. Python Invoke doesn't specify an API to pass command name and separate argument strings when running external commands. Honestly I don't even know if Python itself supports it. Ticket reported in Invoke project: context.run(): Expose API to pass command and separate args instead of a single string pyinvoke/invoke#977
2. Node does offer an API for that: child_process.spawn(command[, args][, options]). However it doesn't escape or encode properly individual arguments. For example:

const path = '/tmp/123 foo "bar';

cont result = child_process.spawnSync('ls', [ '-ls', path ]);

result.stderr.toString();
// => 'ls: /tmp/123 foo "bar: No such file or directory\n'

At least installation in a path with whitespaces keep working (it was already since previos PR). I just give up here and honestly nobody should expect thst any library work properly when installing it under a too fancy path. BTW this is not the purpose of this PR anyway.

[nazar-pc]

I like less shell scripts, just one nit in build.rs

[ibc]

I'm reverting changes in npm-scripts and use execSync() again. Why? Because mediasoup-node CI task fails on Windows due to "tsc ENOENT": https://github.com/versatica/mediasoup/actions/runs/7008109231/job/19063676923?pr=1245

Revert commit here: e39731d

When running any npm script, npm adds node_modules/.bin to the PATH. Otherwise calling tsc here wouldn't work at all. But for whatever reason it's failing when using spawn() despite the created process inherits process.env as documented. I don't want to waste time investigating this. Using exec() is way more comfortable than using spawn() and using the latter has proven to not fix ANYTHING.