Press Alt To Meow

• update to 1.21

• update to 1.20.6

• update to 1.20.1
• drop support for <1.20.1

allow 1.19.3 and java > 17 (fix #3 and #4)allow 1.19.3 and java > 17 (fix #3 and #4)

allow older minecraft versions without having to use dependency overrides

fix #1, client-only meowing works now fix spectators being able to Meow