chore(test): use chai throws() & chai-as-promised isRejected()

[rvagg]

No description provided.

[rvagg]

failing on the new typescript test suite:

Error: src/main.ts(1,24): error TS2307: Cannot find module 'multiformats/block' or its corresponding type declarations.
Error: src/main.ts(2,24): error TS2307: Cannot find module 'multiformats/hashes/sha2' or its corresponding type declarations.
Error: src/main.ts(3,23): error TS2307: Cannot find module 'multiformats/codecs/json' or its corresponding type declarations.

But why didn't it fail on #142? I even rebased that and it had to run through master successfully to get released. I haven't touched any of these or the tsconfigs that point to these packages. Why now? There hasn't been a new version of typescript between that commit and this.

[rvagg]

fixed with a rebase, thanks to the type checking revert

[github-actions]

🎉 This PR is included in version 9.5.8 🎉

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• GitHub release

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