fix(diffusers): use nightly rocm for hipblas builds (#3202)

Signed-off-by: Ettore Di Giacinto <mudler@users.noreply.github.com>

backend/python/diffusers/requirements-hipblas.txt

@@ -1,4 +1,5 @@
---extra-index-url https://download.pytorch.org/whl/rocm6.0
+--pre
+--extra-index-url https://download.pytorch.org/whl/nightly/
 torch
 torchvision
 diffusers
@@ -7,4 +8,4 @@ transformers
 accelerate
 compel
 peft
-sentencepiece
+sentencepiece