Add Coherence metric #2566

Job	Run time
Lint JavaScript	17s
CodeQL SAST scan / Analyze	1m 56s
Lint SCSS / Run Stylelint	21s
Test Ruby / Run RSpec	3m 14s
Test JavaScript / Run Jasmine	40s
Lint ERB / Run ErbLint	13s
Security Analysis / Run Brakeman	23s
Dependency Review scan / dependency-review-pr	7s
Lint Ruby / Run RuboCop	17s
Dependency Review scan / dependency-review-push	0s
	7m 28s

Provide feedback