v3.0.0

• v3 by @zero-to-prod in #15
• feat/update-orders by @zero-to-prod in #12
• v3 (#15) by david in 44fa496
• Add composer_require_checker.yml. by David Smith in ded7335
• Update release.yml by David Smith in 361660f
• Update devcontainer.json. by David Smith in 513d3c9
• Update release workflows by david_smith in 06b0fcf
• Add release.yml. by david_smith in 6616674
• Update README.md. by david_smith in 8adfb28
• Add backwards compatibility by david_smith in 1b586a8
• Add Roave Backwards Compatibility Check to test.yml by david_smith in cc60f78