revert init changes.

Author: sayakpaul

src/diffusers/__init__.py

@@ -338,8 +338,8 @@
             "StableDiffusion3ControlNetPipeline",
             "StableDiffusion3Img2ImgPipeline",
             "StableDiffusion3InpaintPipeline",
-            "StableDiffusion3PAGImg2ImgPipeline",
             "StableDiffusion3PAGPipeline",
+            "StableDiffusion3PAGImg2ImgPipeline",
             "StableDiffusion3Pipeline",
             "StableDiffusionAdapterPipeline",
             "StableDiffusionAttendAndExcitePipeline",