fix(deps-dev): add @types/babel__generator to dependencies

[kenyiu]

Why?

The following error message popped when running bun run build.

$ tsc && chmod 755 dist/index.js
error TS2688: Cannot find type definition file for 'babel__generator'.
  The file is in the program because:
    Entry point for implicit type library 'babel__generator'


Found 1 error.

What this PR does?

add the dev dependencies for running build successfully.

[enesgules]

I couldn't reproduce it, could you share some information about your coding environment like the OS

[kenyiu]

@enesgules
node version: v23.11.1
bun version: 1.2.19
mac environment

[enesgules]

I still couldn't reproduce with bun v1.2.0 and node v23.11.0

could you try with these please

rm -rf node_modules
bun pm cache rm
bun install --frozen-lockfile

[kenyiu]

@enesgules not working still. i even tried using bun v1.2.0 with node v23.11.0, still can reproduce the same error.

[enesgules]

super interesting