Implement waitFor in .devcontainer.json #1484

Job	Run time
test-e2e-windows (build)	1m 7s
test-e2e (build)	9m 51s
test-e2e (ide)	9m 45s
test-e2e-windows (ide)	1s
test-e2e (integration)	9m 1s
test-e2e-windows (ssh)	1s
test-e2e (machine)	8m 27s
test-e2e-windows (up-docker)	1s
test-e2e (machineprovider)	9m 32s
test-e2e-windows (up-docker-build)	1s
test-e2e (provider)	8m 0s
test-e2e-windows (up-docker-compose)	1s
test-e2e (proxyprovider)	9m 18s
test-e2e (ssh)	8m 55s
test-e2e (up)	11m 40s
test-e2e (up-docker)	10m 41s
test-e2e (up-podman)	8m 53s
test-e2e (up-docker-compose)	10m 57s
test-e2e (up-docker-build)	9m 19s
test-e2e (up-docker-compose-build)	9m 53s
test-e2e (context)	8m 29s
	2h 23m 53s

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