Add Mentor and ECT types for `ParticipantDeclaration` #3790

Job	Run time
Build and push Docker image	4m 44s
Run Brakeman vulnerability scanner / Brakeman Scan	2m 27s
Lint / Lint JS	22s
Lint / Lint ERB	42s
Lint / Lint ruby	1m 5s
Lint / Lint SCSS	43s
Run the RSpec tests / Run rspec (6, 0)	7m 11s
Run the RSpec tests / Run end to end scenarios (10, 0)	11m 35s
Run the RSpec tests / Run rspec (6, 1)	10m 35s
Run the RSpec tests / Run end to end scenarios (10, 1)	10m 16s
Run the RSpec tests / Run rspec (6, 2)	8m 33s
Run the RSpec tests / Run rspec (6, 3)	8m 9s
Run the RSpec tests / Run end to end scenarios (10, 2)	9m 49s
Run the RSpec tests / Run rspec (6, 4)	11m 55s
Run the RSpec tests / Run end to end scenarios (10, 3)	9m 29s
Run the RSpec tests / Run rspec (6, 5)	7m 19s
Run the RSpec tests / Run end to end scenarios (10, 4)	10m 10s
Run the RSpec tests / Run end to end scenarios (10, 5)	11m 8s
Run the RSpec tests / Run end to end scenarios (10, 6)	10m 49s
Run the RSpec tests / Run end to end scenarios (10, 7)	11m 43s
Run the RSpec tests / Run end to end scenarios (10, 8)	10m 37s
Run the RSpec tests / Run end to end scenarios (10, 9)	9m 41s
Run Smoke tests	0s
Deploy review	3m 11s
Permit merge	1s
Deploy staging	0s
Deploy sandbox	0s
Deploy production	0s
	2h 52m 14s

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