buildEnd on tsup plugin is called before dts files are generated

I was playing around with a custom tsup plugin (not esbuild plugin!) and found out that apparently, the buildEnd hook is called after bundling is done, but before the .d.ts files are generated (with `dts = true`). I would have expected that hook to be called when all build steps are done. Not sure if this is intended behaviour or not, but it was definitely surprising for me.
I would suggest either to call buildEnd _after_ the dts files are generated, or to introduce a new hook that behaves this way.