3.3.0

Merged

• Iterators refactoring #54
• chore(deps-dev): Update friends-of-phpspec/phpspec-code-coverage requirement from ^5 to ^5 || ^6 #53

Commits

• tests: Add more tests. 8fc51fd
• refactor: Mark iterators as internal. af7ee07
• refactor: Rewrite iterators and optimize things here and there. 87124da
• chore(deps-dev): Update friends-of-phpspec/phpspec-code-coverage requirement || ^6 164a8b5