fix(deps): update dependency workerpool to v9

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
workerpool	8.0.0 -> 9.1.3

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Release Notes

josdejong/workerpool (workerpool)

v9.1.3

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• Fix transferring from the worker (#​455). Thanks @​LeonidPolukhin.

v9.1.2

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• Fix: #​446 ensure the library can be used with older browsers.

v9.1.1

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• Fix: events not emitted when using (#​439). Thanks @​t0oF-azpn.

v9.1.0

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• Support capturing the stdout/stderr streams from the workers (#​425, #​423).
  Thanks @​cpendery.

v9.0.4

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• Improve the logic to detect the Node.js platform (#​421). Thanks @​tamuratak.

v9.0.3

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• Improve types: unwrap Promise types (#​419). Thanks @​joshkel.

v9.0.2

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• Export the Proxy type (see #​417). Thanks @​tamuratak.
• Use workerpool's Promise type definition (see #​417). Thanks @​tamuratak.

v9.0.1

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• Export the types Pool, WorkerPoolOptions, and WorkerRegisterOptions,
  see #​416. Thanks @​joshkel.

v9.0.0

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BREAKING CHANGE: the library now comes with TypeScript type definitions
included. There may be minor differences between the new, embedded type
definitions and the implementation from @types/workerpool that was needed
before. For example, type WorkerPool is called type Pool now.

• Generate TypeScript types from JSDoc comments. Thanks @​tamuratak.

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