Enable manual trigger for CI #381

Job	Run time
build-firmware	1m 54s
build-firmware	1m 49s
build-plugins (shrapnel, Release)	5m 26s
build-plugins (shrapnel, Release)	1m 24s
ctest (Release)	7m 26s
ctest (Release)	1m 46s
ctest-sanitize (Release)	15m 12s
ctest-sanitize (Release)	2m 28s
build-plugins (shrapnel, Debug)	4m 25s
build-plugins (shrapnel, Debug)	1m 18s
ctest (Debug)	6m 13s
ctest (Debug)	1m 42s
flutter-analyze	2m 55s
flutter-analyze	1m 29s
ctest-sanitize (Debug)	8m 20s
ctest-sanitize (Debug)	1m 41s
flutter-format	1m 40s
flutter-format	54s
flutter-test	2m 48s
flutter-test	1m 34s
license-headers	52s
license-headers	41s
coveralls-finish	3s
coveralls-finish	0s
	1h 14m 0s

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