Release Angular 15 version support
What's Changed
- docs: add Yberion as a contributor for code by @allcontributors in #389
- Enable strictNullChecks by @chivesrs in #392
- chore: update ubuntu-latest for GitHub Actions by @santoshyadavdev in #399
- chore: update to Angular 15 by @Yberion in #398
- chore: increase package version by @santoshyadavdev in #403
Full Changelog: v6.0.1...v7.0