fix: align dependency versions with FaceFusion 3.5.3 and fix GPU build

- Update onnxruntime to 1.24.1, numpy to 2.2.1, opencv-python to 4.13.0.92,
  scipy to 1.17.0, onnx to 1.20.1 to match facefusion/requirements.txt
- GPU Dockerfile: install Python 3.12 from deadsnakes PPA since CUDA base
  image ships Python 3.10 which is too old for onnxruntime-gpu 1.24.1
- Copy both requirements files in COPY step so -r reference resolves

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

requirements.txt

@@ -4,9 +4,9 @@ python-multipart==0.0.18
 pydantic-settings==2.7.1
 psutil==6.1.1
 
-# FaceFusion dependencies (excluding gradio)
-numpy==1.26.4
-opencv-python==4.10.0.84
-onnx==1.17.0
-scipy==1.14.1
-tqdm==4.67.1
+# FaceFusion dependencies (matching facefusion/requirements.txt, excluding gradio)
+numpy==2.2.1
+opencv-python==4.13.0.92
+onnx==1.20.1
+scipy==1.17.0
+tqdm==4.67.3