fix: disable code minification

[bluwy]

This doesn't change the dist code much, because the only minification it did before was renaming identifiers, but I think it's better to not minify at all.

One benefit of this is you get better error messages:

                if (this._options.throwOnError && this.exitCode !== 0 && this.exitCode !== void 0) throw new NonZeroExitError(this, result);
                                                                                                         ^

NonZeroExitError: The process exited with a non-zero status (128)
    at ExecProcess._waitForOutput (file:///Users/bjorn/Work/oss/tinyexec/dist/main.mjs:291:92)
    at async file:///Users/bjorn/Work/oss/tinyexec/test.mjs:3:1 {

Before:

                if (this._options.throwOnError && this.exitCode !== 0 && this.exitCode !== void 0) throw new k(this, i);
                                                                                                         ^

k [Error]: The process exited with a non-zero status (128)
    at I._waitForOutput (file:///Users/bjorn/Work/oss/tinyexec/dist/main.mjs:291:92)
    at async file:///Users/bjorn/Work/oss/tinyexec/test.mjs:3:1 {

Note the NonZeroExitError: part

[43081j]

what's the size difference?

note you can also retain those names by keepNames.

i'm not necessarily against this but want to understand these two things first.

[bluwy]

Before: 8.86 kB. After: 11.69 kB.

With keepNames: 9.24 kB. Also fixes the error name issue.

But I also prefer we don't minify at all like how we usually recommend people to setup.