Upgrade typescript to 5.4

[dylanpyle]

(PR coming shortly)

Looks like this dependency comes from @ts-morph/bootstrap; bumping that version to 0.23+ should now use TypeScript 5.4.

This will definitely break some builds, as 5.4 is stricter about a few things (e.g. type imports conflicting with local values), but allows usage of new features like NoInfer.

[dylanpyle]

Well - I tried to make this change but I'm having some issues getting it to work - will follow up if I get that resolved:

• Branch is here
• Hitting this error when pulling from this branch (via jsdelivr):

error: Relative import path "@std/fs/empty_dir" not prefixed with / or ./ or ../ and not in import map from "https://cdn.jsdelivr.net/gh/dylanpyle/dnt/mod.ts"
    at https://cdn.jsdelivr.net/gh/dylanpyle/dnt/mod.ts:30:26

[dsherret]

@dylanpyle could you open a pr even if it might not be working? (It won't work via jsdelivr because it's using an import map internally. In Deno we need to improve the situation of using a jsr dep locally when it uses an import map.)

[dylanpyle]

@dsherret sure thing - #408