add a tag-line of what identified the test dependencies

[komuw]

What(What have you changed/added/removed?)

• add a tag-line of what identified the test dependencies

require (
	// created using: https://github.com/komuw/ote

	github.com/frankban/quicktest v1.13.0 // test
	github.com/pkg/errors v0.9.1 // test
	go.uber.org/goleak v1.1.10 // test
)

Why(Why did you change/add/remove it?)