feat(broker): allow to set queue name dynamically when kicking

[realitix]

Hello,

In some case, it can be very useful to set the queue_name directly in the label. If we have several workers with different configurationse this avoids the need to create a broker and a scheduler for each type of worker. Instead, by putting the queue_name in the labels, the task will automatically be sent to the correct worker. And therefore a single scheduler can send the task to several workers.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (09e835e) 96.31% compared to head (41fe84a) 96.34%. Report is 4 commits behind head on develop.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #52 +/- ## =========================================== + Coverage 96.31% 96.34% +0.03% =========================================== Files 7 7 Lines 217 219 +2 =========================================== + Hits 209 211 +2 Misses 8 8 ```

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