sea-orm-cli generates incorrect model for MySQL database containing 'MEDIUMINT UNSIGNED' columns

Description

generate model using latest stable cli

a table has field type MEDIUMINT UNSIGNED was generated as String which is wrong, should be number types.

Steps to Reproduce

create a demo database, which as a demo table, has a field invited_by with type MEDIUMINT UNSIGNED
2.

sea-orm-cli generate entity --with-serde both \
--serde-skip-deserializing-primary-key \
--with-copy-enums \
-o src/entity

Expected Behavior

the model should generate something like:

    #[sea_orm(column_type = "custom(\"MEDIUMINT UNSIGNED\")")]
    pub invited_by:  u32,

Actual Behavior

    #[sea_orm(column_type = "custom(\"MEDIUMINT UNSIGNED\")")]
    pub invited_by: String,

Reproduces How Often

always

Workarounds

manual fixup after generation

Reproducible Example

Versions

sea-orm-cli -V
sea-orm-cli 0.11.1

Start with the sea-orm-cli generate entity command and reproduce the issue using a MySQL table containing a MEDIUMINT UNSIGNED column. Compare the generated invited_by field with the expected u32 type, and consider the work complete when generation no longer produces String for this column type.