chore(release): 2.0.0 [skip ci]

# [2.0.0](https://gitlab.com/to-be-continuous/k6/compare/1.0.0...2.0.0) (2021-09-03)

### Features

* Change boolean variable behaviour ([f3112ac0](https://gitlab.com/to-be-continuous/k6/commit/f3112ac0ae4e84ce4014a220dd5093e395a3aab2)

)

### BREAKING CHANGES

* boolean variable now triggered on explicit 'true' value

Signed-off-by: Cédric OLIVIER <cedric3.olivier@orange.com>