add mysql timeout env (#4584) #1181

Job	Run time
build phraseanet-fpm / build	52s
build phraseanet-setup / build	32s
build phraseanet-worker / build	30s
build phraseanet-elasticsearch / build	23s
build phraseanet-nginx / build	28s
build phraseanet-db / build	39s
unit test	5m 41s
	9m 5s

Provide feedback