build: bump Fabric & Runtime dependencies

build: general dependency bump

build: actually checkout 1.21.1 on 1.21.1

docs: update compatibility table

fix: suppress map cursor paper exception

docs: update config file

fix: Set execution scopes in commands

fix: NMS exceptions being thrown when applying modifiers

Spigot's validation for this is like my hoover: it sucks.

feat: correctly apply keyed attribute modifiers, close #326

We need to construct attributes with their key if possible to avoid stacking. Uses reflection :( to do this.

Also adds a bit of error checking to health scale syncing

deps: bump Uniform to 1.1.8

Fixes startup NPE fetching usage text