2.0.0-rc2

refactor: update deps, apply style fixes, upgrade phpunit (#10)

* deps: update all (dev-) deps to current version

* refactor: apply more rector prepared sets and phpcsfixer rules

* feat: upgrade to phpunit 11

* fix: checking for empty string is sufficient

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Co-authored-by: darthf1 <17253332+darthf1@users.noreply.github.com>