chore(release): 3.0.0 [skip ci]

# [3.0.0](https://gitlab.com/to-be-continuous/k6/compare/2.1.0...3.0.0) (2022-08-05)

### Features

* adapative pipeline ([347464cb](https://gitlab.com/to-be-continuous/k6/commit/347464cbff782af897d2e049e746e6e19494e9eb))

### BREAKING CHANGES

* change default workflow from Branch pipeline to MR pipeline