Implement the rewrite from the Map literal to Map function #11434

Is your feature request related to a problem or challenge?

Based on the discussion in #11268 (comment), we will support the MAP literal to create a map value. Referring to the DuckDB syntax, we can use syntax like:

SELECT MAP {'key1': 10, 'key2': 20, 'key3': 30};

Describe the solution you'd like

After #11361, we now have two functions: map and make_map. We can use UserDefinedSQLPlanner to implement the proposed syntax and rewrite it to the map function. As @jayzhan211 mentioned in #11361 (comment), we can also use ExprPlanner to handle the make_map function. Since make_map is less efficient than the map function, we should retain only the faster map scalar function implementation. For more details, see the previous discussions and benchmark results in #11361.

Describe alternatives you've considered

No response

Additional context

No response