Bump wtforms from 3.0.1 to 3.1.2 #791

Job	Run time
unit (utests)	1m 5s
integration (tests-noqueue, QuickTest)	1m 41s
lint	35s
unit (tests-api-mock)	1m 2s
integration (tests-noqueue, BuildFailedTest)	33s
unit (tests-server)	1m 0s
integration (tests-noqueue, RepositoryTests)	36s
integration (tests-noqueue, TestBertE)	3m 31s
integration (tests-noqueue, TestQueueing)	31s
integration (tests-noqueue, TaskQueueTests)	2m 24s
integration (tests, QuickTest)	1m 44s
integration (tests, BuildFailedTest)	37s
integration (tests, RepositoryTests)	35s
integration (tests, TestBertE)	4m 19s
integration (tests, TestQueueing)	3m 55s
integration (tests, TaskQueueTests)	2m 19s
	26m 27s

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