Bump version to 5.1.2

Author: NonSwag

gradle.properties

@@ -1,3 +1,3 @@
 gameVersions=1.21,1.21.1,1.21.2,1.21.3,1.21.4,1.21.5,1.21.6,1.21.7,1.21.8,1.21.9,1.21.10,1.21.11,26.1,26.1.1,26.1.2,26.2
 velocityVersions=3.3,3.4,3.5
-version=5.1.1
+version=5.1.2