Fix: potential thread leak (#337) #1092

Job	Run time
Collect data for other tasks	13s
Run Linters	2m 29s
Compile Maps	2m 29s
Windows Build	1m 48s
Integration Tests (gateway_test) / run_integration_tests	9m 45s
Integration Tests (birdshot) / run_integration_tests	8m 34s
Integration Tests (deltastation) / run_integration_tests	8m 54s
Integration Tests (icebox) / run_integration_tests	8m 54s
Integration Tests (metastation) / run_integration_tests	8m 44s
Integration Tests (multiz_debug) / run_integration_tests	8m 4s
Integration Tests (northstar) / run_integration_tests	9m 42s
Integration Tests (runtimestation) / run_integration_tests	7m 34s
Integration Tests (tramstation) / run_integration_tests	9m 1s
Integration Tests (wawastation) / run_integration_tests	8m 58s
Alternate Tests (515, 1627, runtimestation) / run_integration_tests	7m 36s
Check Alternate Tests	1s
Compare Screenshot Tests	24s
	1h 43m 10s

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