Added middleware to confirm isTeacher. #4048

Job	Run time
branch_meta	3s
build_and_push_docker (default)	4m 12s
build_and_push_docker (brb)	4m 24s
build_and_push_docker (n21)	5m 16s
build_and_push_docker (thr)	4m 26s
trivy-vulnerability-scanning	1m 30s
deploy / create_artifacts_repos (schulcloud-server)	53s
deploy / create_artifacts_repos (schulcloud-client)	14s
deploy / create_artifacts_repos (nuxt-client)	18s
deploy / create_artifacts_repos (superhero-dashboard)	7s
end-to-end-tests / e2e (courses_and_topics)	6m 32s
deploy / create_artifacts_repos (schulcloud-calendar)	9s
end-to-end-tests / e2e (management)	7m 32s
deploy / create_artifacts_repos (antivirus_check_service)	6s
end-to-end-tests / e2e (navi_user_settings)	7m 40s
deploy / create_artifacts_repos (version-aggregator)	5s
end-to-end-tests / e2e (tasks_and_other)	7m 30s
deploy / create_artifacts_repos (dof_app_deploy)	5s
deploy / create_artifacts_repos (h5p-staticfiles-server)	5s
deploy / create_branch_identifier / convert_branch_name	2s
deploy / create_artifacts_workspaces (brb)	4s
deploy / create_artifacts_workspaces (default)	4s
deploy / create_artifacts_workspaces (nbc)	2s
deploy / create_artifacts_workspaces (thr)	11s
deploy / bingo_add_branch / get_values_insert_branch_if_not_existent	6s
deploy / deploy	7m 13s
test-successful	1s
cy-e2e-tests	0s
deploy-successful	0s
	58m 50s

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