chore: use diffusers 0.35 for kontext tests (#494)

Author: lmxyy

.github/workflows/test-ampere.yaml

@@ -85,7 +85,8 @@ jobs:
           conda install -c conda-forge gxx=11 gcc=11
           echo "Installing dependencies"
           pip install torch==2.7 torchvision==0.22 torchaudio==2.7 --index-url https://download.pytorch.org/whl/cu128
-          pip install ninja wheel diffusers==0.33.1 transformers==4.51 accelerate==1.7 sentencepiece==0.2 protobuf==6.31 huggingface_hub==0.31
+          pip install git+https://github.com/huggingface/diffusers
+          pip install ninja wheel transformers==4.51 accelerate==1.7 sentencepiece==0.2 protobuf==6.31 huggingface_hub==0.31
       - name: Build
         run: |
           source $(conda info --base)/etc/profile.d/conda.sh

.github/workflows/test-blackwell.yaml

@@ -85,7 +85,8 @@ jobs:
           conda install -c conda-forge gxx=11 gcc=11
           echo "Installing dependencies"
           pip install torch==2.7 torchvision==0.22 torchaudio==2.7 --index-url https://download.pytorch.org/whl/cu128
-          pip install ninja wheel diffusers==0.33.1 transformers==4.51 accelerate==1.7 sentencepiece==0.2 protobuf==6.31 huggingface_hub==0.31
+          pip install git+https://github.com/huggingface/diffusers
+          pip install ninja wheel transformers==4.51 accelerate==1.7 sentencepiece==0.2 protobuf==6.31 huggingface_hub==0.31
       - name: Build
         run: |
           source $(conda info --base)/etc/profile.d/conda.sh