Merge pull request #83 from sumup-oss/modify-rabbitmq-add-headers #219

Job	Run time
Test (1.15, ubuntu-latest, .)	33s
Test (1.15, ubuntu-latest, ./executor/kubernetes)	42s
Test (1.15, ubuntu-latest, ./errors)	15s
Test (1.15, macos-latest, .)	1m 33s
Test (1.15, macos-latest, ./executor/kubernetes)	1m 56s
Test (1.15, macos-latest, ./errors)	1m 0s
Test (1.16, ubuntu-latest, .)	39s
Test (1.16, ubuntu-latest, ./executor/kubernetes)	50s
Test (1.16, ubuntu-latest, ./errors)	21s
Test (1.16, macos-latest, .)	1m 42s
Test (1.16, macos-latest, ./executor/kubernetes)	1m 42s
Test (1.16, macos-latest, ./errors)	39s
	11m 52s

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