Bump add-on version to v0.1.3

Includes a bug fix for crashing when no eligible constants were found
for DSL generation

Author: KaanOzkan

lib/ruby_lsp/tapioca/addon.rb

@@ -78,7 +78,7 @@ def name
 
       sig { override.returns(String) }
       def version
-        "0.1.2"
+        "0.1.3"
       end
 
       sig { params(changes: T::Array[{ uri: String, type: Integer }]).void }