text: Title: Not allowed to use word "Request" as a part of serializer name for some reason
  Body: **Describe the bug**
  I was extending my API and creating new serializers. After adding another one and regenerating the schema I encountered this error message:
  
  ```
  Warning [FilledFormAnswerViewSet > FilledFormAnswerSerializer > FormQuestionSerializer]: Encountered 2 components with identical names "FormQuestionRequest" and different classes <class 'forms.serializers.FormQuestionSerializer'> and <class 'forms.serializers.FormQuestionRequestSerializer'>. This will very likely result in an incorrect schema. Try renaming one.
  ```
  
  This error appears after I type-hint a SerializerMethodField.  
  Class structure is as follows:
  
  ```
  class FormQuestionRequestMappingSerializer(serializers.Serializer):
      label = serializers.CharField()
      value = serializers.CharField()
  
      class Meta:
          fields = ("label", "value")
  
  
  class FormQuestionRequestSerializer(serializers.Serializer):
      url = serializers.CharField()
      mapping = serializers.DictField(
          child=FormQuestionRequestMappingSerializer(),
          allow_empty=False,
      )
      params = serializers.DictField()
  
      class Meta:
          fields = ("url", "mapping", "params")
  
  class FormQuestionSerializer(serializers.ModelSerializer):
      choices = FormQuestionChoiceSerializer(many=True, read_only=True)
      request_params = serializers.SerializerMethodField()
  
      @extend_schema_field(FormQuestionRequestSerializer)
      def get_request_params(self, obj):
          if obj.data_type != QuestionDataType.REQUEST:
              return None
  
          return dict(
              url=reverse(obj.request_field_route) if obj.request_field_route else None,
              mapping={
                  "value": obj.request_field_mapping.get("value", "id"),
                  "label": obj.request_field_mapping.get("label", "title"),
              },
              request_params=obj.request_field_params,
          )
  
      class Meta:
          model = FormQuestion
          fields = (
              "id",
              "title",
              "data_type",
              "request_params",
          )
  ```
  
  And as soon as I rename FormQuestionRequestSerializer to NOT contain the exact "Request" word - the error is gone.  
  This serializer class name is unique in the project - so I am sure it does not clash with an existing one.
  
  I also have a model class `FormQuestion` in my app, and maybe somehow that causes the name conflict, but I don't quite get how it may happen.
  
  DRF-spectacular settings are as follows:
  
  ```
  SPECTACULAR_SETTINGS = {
      "TITLE": "API Project",
      "DESCRIPTION": "API for my project",
      "VERSION": "1.0.0",
      "COMPONENT_SPLIT_REQUEST": True,
      "POSTPROCESSING_HOOKS": [],
  }
  ```
  
  **Expected behavior**
  Being able to name serializer classes without causing critical errors.
  