Placeholder datatype not inferred after `LIMIT` clause

[kczimm]

Describe the bug

When using a parameterized query with a placeholder indicating the value in the LIMIT clause, the datatype is not inferred.

To Reproduce

let schema = Arc::new(Schema::new(vec![Field::new("A", DataType::Int32, true)]));
let source = Arc::new(LogicalTableSource::new(schema.clone()));

let placeholder_value = "$1";

// SELECT * FROM my_table LIMIT $1
let plan = LogicalPlan::Limit(Limit {
    skip: None,
    fetch: Some(Box::new(Expr::Placeholder(Placeholder {
        id: placeholder_value.to_string(),
        data_type: None,
    }))),
    input: Arc::new(LogicalPlan::TableScan(TableScan {
        table_name: TableReference::from("my_table"),
        source,
        projected_schema: Arc::new(DFSchema::try_from(schema.clone())?),
        projection: None,
        filters: vec![],
        fetch: None,
    })),
});

let params = plan.get_parameter_types().expect("to infer type");
assert_eq!(params.len(), 1);

let parameter_type = params
    .clone()
    .get(placeholder_value)
    .expect("to get type")
    .clone();
assert_eq!(parameter_type, Some(DataType::Int64));

assertion `left == right` failed
  left: None
 right: Some(Int64)

Expected behavior

Assertion passes.

Additional context

No response