make requires_safety_checker a kwarg instead of a positional argument as it's more future-proof

pipeline.py

@@ -276,7 +276,14 @@ class LLMGroundedDiffusionPipeline(StableDiffusionPipeline):
         requires_safety_checker: bool = True,
     ):
         super().__init__(
-            vae, text_encoder, tokenizer, unet, scheduler, safety_checker, feature_extractor, requires_safety_checker
+            vae,
+            text_encoder,
+            tokenizer,
+            unet,
+            scheduler,
+            safety_checker,
+            feature_extractor,
+            requires_safety_checker=requires_safety_checker,
         )
 
         self.register_attn_hooks(unet)