fix(deps): update dependency async-mutex to ^0.4.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
async-mutex	^0.3.2 -> ^0.4.0

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Release Notes

DirtyHairy/async-mutex (async-mutex)

v0.4.0

Compare Source

This is a full rewrite of the core implementation.

• Allow negative values for semaphores.
• Allow weights for semaphore.acquire and semaphore.runExclusive.
  A waiter will be dispatched once the value of the semaphore is greater or
  equal to its weight.
• Add semaphore.getValue and semaphore.setValue.
• Allow weights for semaphore.waitForUnlock. The promise will only resolve
  once the value of the semaphore is greater or equal to its weight.
• Only resolve waitForUnlock once no waiters remain (fixes #​52).
• waitForUnlock times out if the withTimeout decorator is used.

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