feat(python): add NoSQLi rule for mongodb (CWE-943) #1377

Job	Run time
build (javascript/express)	2m 7s
build (javascript/express)	2m 7s
build (javascript/hapi)	15s
build (javascript/hapi)	15s
build (javascript/lang)	3m 23s
build (javascript/lang)	3m 23s
build (javascript/node)	17s
build (javascript/node)	17s
build (javascript/react)	25s
build (javascript/react)	25s
build (javascript/third_parties)	1m 57s
build (javascript/third_parties)	1m 57s
build (ruby/lang)	4m 11s
build (ruby/lang)	4m 11s
build (ruby/rails)	1m 34s
build (ruby/rails)	1m 34s
build (ruby/third_parties)	3m 25s
build (ruby/third_parties)	3m 25s
build (java/lang)	2m 57s
build (java/lang)	2m 57s
build (java/spring)	18s
build (java/spring)	18s
build (java/android)	14s
build (java/android)	14s
build (java/third_parties)	33s
build (java/third_parties)	33s
build (php/lang)	5m 0s
build (php/lang)	5m 0s
build (php/symfony)	55s
build (php/symfony)	55s
build (php/third_parties)	1m 8s
build (php/third_parties)	1m 8s
build (python/django)	28s
build (python/django)	28s
build (python/lang)	1m 6s
build (python/lang)	1m 5s
build (go/lang)	1m 0s
build (go/lang)	1m 0s
build (go/gosec)	2m 6s
build (go/gosec)	2m 6s
build (go/gorilla)	13s
build (go/gorilla)	13s
build (go/third_parties)	39s
build (go/third_parties)	39s
	1h 8m 21s

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