bump version

Signed-off-by: shedaniel <daniel@shedaniel.me>

gradle.properties

@@ -1,4 +1,4 @@
-mod_version=4.0.7-unstable
+mod_version=4.0.8-unstable
 minecraft_version=20w10a
 yarn_version=20w10a+build.2
 fabricloader_version=0.7.8+build.186