Edge Android Support

What's Changed

• Add Support for Android Edge a36be7d
• Test in PHP 8.1 0591e70
• Make tooling work in PHP 8 ea4c802
• Adds a decent chunk of test coverage a36be7d...c84fd3c
• add json extension requirement to composer by @Rotzbua in #76
• add three-digit major version number test by @Rotzbua in #78
• Removing unused extensions from CI by @donatj in #79

New Contributors

• @Rotzbua made their first contribution in #76

Full Changelog: v1.5.0...v1.6.0