Bug: Schema Registry Cache not updated after deletion

[0xn4utilus]

Description

When using delete_subject(), the schema cache should be updated but instead it still contains the deleted subject and related schemas, as a result when registering new schema with the same subject name using register_schema()

schema_id = self._cache.get_schema_id_by_subject(subject_name, schema)
if schema_id is not None:
     return schema_id

returns deleted schema_id