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

This MR contains the following updates:

Package	Type	Update	Change
bull	dependencies	patch	4.15.0 -> 4.15.1

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Release Notes

OptimalBits/bull (bull)

v4.15.1

Compare Source

Bug Fixes

• job: check jobKey when saving stacktrace (#​2755) (96675f5)

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