Add istanbul-lib-instrument for Karma code coverage

Proprietary

Adds istanbul-lib-instrument to devDependencies of projects that still depend on Karma. Angular 22 stopped bundling the instrumenter, so Karma code coverage fails without it. Run an install afterwards to refresh the lock file.

org.openrewrite.angular.migration.add-istanbul-instrumenter
mod run . --recipe=org.openrewrite.angular.migration.add-istanbul-instrumenter

Install it once, then run it on every repository under the current directory. New to the Moderne CLI? Set it up.