refactor: use Boolean constructor to cast CI variable
refactor: use Boolean constructor to cast CI variable

Fixes violation of the no-implicit-coercion ESLint rule. This is an optional rule that some Ember users might enable.

https://eslint.org/docs/rules/no-implicit-coercion

raycohen/ember-cli,thoov/ember-cli,thoov/ember-cli,elwayman02/ember-cli,kategengler/ember-cli,thoov/ember-cli,thoov/ember-cli,ember-cli/ember-cli,kategengler/ember-cli,asakusuma/ember-cli,asakusuma/ember-cli,ember-cli/ember-cli,elwayman02/ember-cli,balinterdi/ember-cli,buschtoens/ember-cli,jrjohnson/ember-cli,raycohen/ember-cli,ember-cli/ember-cli,buschtoens/ember-cli,jrjohnson/ember-cli,balinterdi/ember-cli