Function doesn't need to be public

Co-authored-by: Ifeanyi Ubah <[email protected]>

Author: ramnes

src/parser/alter.rs

@@ -39,7 +39,7 @@ impl Parser<'_> {
         ))
     }
 
-    pub fn parse_alter_user(&mut self) -> Result<Statement, ParserError> {
+    fn parse_alter_user(&mut self) -> Result<Statement, ParserError> {
         if dialect_of!(self is PostgreSqlDialect) {
             return self.parse_pg_alter_user();
         }