Bump sqlparse from 0.5.3 to 0.5.4 in /backend #512

Job	Run time
Backend Check / Django Check	1m 51s
Frontend Check / React Check	31s
Frontend Check / Publish frontend	2m 4s
Build backend	-1s
Build frontend	2m 27s
Publish Images	0s
Deploy	0s
	6m 52s

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