Change build.gradle version to 1.1.20

Author: UserNugget

build.gradle

@@ -14,7 +14,7 @@ allprojects() {
   apply(plugin: "org.cadixdev.licenser")
 
   setGroup("net.elytrium.limboapi")
-  setVersion("1.1.19")
+  setVersion("1.1.20")
 
   compileJava() {
     sourceCompatibility = JavaVersion.VERSION_17