fix: pass sdkUrl into init() in worker

[c0per]

When a worker is calling init(), if the sdkUrl isn't passed in, the sdk url will be reset due to this code in index.ts:

if (initValue.sdkUrl) {
  setSDKUrl(initValue.sdkUrl.toString());
}
else {
  setSDKUrl(new URL("index.mjs", import.meta.url).toString());
}

It may cause some bugs since the default sdk url isn't available due to hashing in filename and etc.

[syrusakbary]

Great call! Merging

[c0per]

Wow what a quick merge! Thanks a lot.

Any chance we can get a new version of @wasmer/sdk in npm? I'm having some breaking bugs in production due to this bug right now.

[syrusakbary]

Yup, let me try do release it soon