2.0.0-beta7 (22-Dec-2022)

• Feature: Raise an error when a generator is both defined in generators attribute and instantiated in generate() method (#12722)
• Feature: test_requires improvements, including allowing it in conanfile.txt (#12699)
• Feature: Improve errors for when required_conan_version has spaces between the operator and the version (#12695)
• Feature: Improvements in ConanAPI organization (#12666)