GDScript: Don't stop annotation argument parsing at file end

modules/gdscript/gdscript_parser.cpp

@@ -1785,7 +1785,7 @@ GDScriptParser::AnnotationNode *GDScriptParser::parse_annotation(uint32_t p_vali
 			}
 
 			argument_index++;
-		} while (match(GDScriptTokenizer::Token::COMMA) && !is_at_end());
+		} while (match(GDScriptTokenizer::Token::COMMA));
 
 		pop_multiline();
 		consume(GDScriptTokenizer::Token::PARENTHESIS_CLOSE, R"*(Expected ")" after annotation arguments.)*");