Describe the bug
generated class missing attributes/features when jsonschema is defined with allof + patternproperties

To Reproduce

Example schema: (in yaml)

definitions:
  First:
    properties:
      first:
        type: string
    required:
      - first
  Second:
    properties:
      second:
        type: string
    required:
      - second

  Third:
    patternProperties:
       ^([a-zA-Z][a-zA-Z0-9_]+)$:
          $ref: '#/definitions/Second'

  Target:
    allOf:
      - $ref: "#/definitions/First"
      - $ref: "#/definitions/Third"

  AnotherTarget:
    allOf:
      - $ref: "#/definitions/First"
      - patternProperties:
           ^([a-zA-Z][a-zA-Z0-9_]+)$:
              $ref: '#/definitions/Second'

Used commandline:

$ datamodel-codegen  --input-file-type jsonschema      --input input.yaml

generated result:

:
class First(BaseModel):
    first: str
class Second(BaseModel):
    second: str
class Third(BaseModel):
    __root__: Dict[constr(regex=r'^([a-zA-Z][a-zA-Z0-9_]+)$'), Second]
class Target(First):
    pass
class AnotherTarget(First):
    pass

Expected behavior
generated class 'Target' should have attributes/features for patternProperties(#/definitions/Third) but missing.
AnotherTaget class also expected as the same as Target class.

Version:

• OS: debian11
• Python version: 3.11
• datamodel-code-generator version: latest master branch (8855a13)

Additional context
none.