build: bump testcafe to 2.6.2, typescript to 4.7.4, and downstream fixes #6235

Job	Run time
CI	2m 22s
Determine if Build & Deploy is needed	1s
Integration Tests	5m 37s
Test	1m 56s
End To End Tests	16m 36s
Build and push for gogov	0s
Build and push for edu	0s
Build and push for health	0s
Upload sourcemap to Sentry	0s
Deploy to Elastic Beanstalk and AWS Lambda for gogov	0s
Deploy to Elastic Beanstalk and AWS Lambda for edu	0s
Deploy to Elastic Beanstalk and AWS Lambda for health	0s
	26m 32s

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