0.21.2

What's Changed

• build: fix codestyle by @bbrala in #322
• fix: Fix phpstan issues and update pipeline actions to current versions by @bbrala in #324
• Allow rector ^2.4.1 and replace file with getFile() if method exists by @samsonasik in #326
• Add theme extension by @nlighteneddesign in #325
• fix: fix theme hook test by @bbrala in #328

Full Changelog: 0.21.1...0.21.2