message: build: ignore `aio`/`docs-infra` commits in `changelog` gulp task
  PR Close
diff: module.exports = (gulp) => () => {
  const conventionalChangelog = require('gulp-conventional-changelog');
  + const ignoredScopes = [
  + 'aio',
  + 'docs-infra',
  + ];
  +
  return gulp.src('CHANGELOG.md')
  - .pipe(conventionalChangelog({preset: 'angular'}))
  + .pipe(conventionalChangelog({preset: 'angular'}, {}, {
  + // Ignore commits that start with `<type>(<scope>)` for any of the ignored scopes.
  + extendedRegexp: true,
  + grep: `^[^(]+\\((${ignoredScopes.join('|')})\\)`,
  + invertGrep: true,
  + }))
  .pipe(gulp.dest('./'));
  };
  