fix(deps): update dependency bull to v4.15.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
bull	4.14.0 -> 4.15.1

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Release Notes

OptimalBits/bull (bull)

### [`v4.15.1`](https://togithub.com/OptimalBits/bull/blob/HEAD/CHANGELOG.md#4151-2024-07-04) [Compare Source](https://togithub.com/OptimalBits/bull/compare/v4.15.0...v4.15.1) ##### Bug Fixes - **job:** check jobKey when saving stacktrace ([#​2755](https://togithub.com/OptimalBits/bull/issues/2755)) ([96675f5](https://togithub.com/OptimalBits/bull/commit/96675f51d1a9e5a30df0a0fe24a40a2d14078203)) ### [`v4.15.0`](https://togithub.com/OptimalBits/bull/blob/HEAD/CHANGELOG.md#4150-2024-06-30) [Compare Source](https://togithub.com/OptimalBits/bull/compare/v4.14.0...v4.15.0) ##### Features - **queue:** emit internal duplicated event ([#​2754](https://togithub.com/OptimalBits/bull/issues/2754)) ([021ab7f](https://togithub.com/OptimalBits/bull/commit/021ab7fd8d6c89b01767572b0e53422f34f7bc04))

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