Code breaks on app startup when pagination extension is not included

[geospatial-jeff]

  File "/app/./arturo/coverage_stac_api/module.py", line 12, in create_app
    stac_api = StacApi(
  File "<attrs generated init stac_fastapi.api.app.StacApi>", line 32, in __init__
    self.__attrs_post_init__()
  File "/root/.local/share/virtualenvs/app-4PlAip0Q/lib/python3.9/site-packages/stac_fastapi/api/app.py", line 362, in __attrs_post_init__
    self.register_core()
  File "/root/.local/share/virtualenvs/app-4PlAip0Q/lib/python3.9/site-packages/stac_fastapi/api/app.py", line 315, in register_core
    self.register_get_item_collection()
  File "/root/.local/share/virtualenvs/app-4PlAip0Q/lib/python3.9/site-packages/stac_fastapi/api/app.py", line 270, in register_get_item_collection
    get_pagination_model = self.get_extension(self.pagination_extension).GET
AttributeError: 'NoneType' object has no attribute 'GET'