Fix gemma4 notebooks: add tokenizers and temporary switch to custom o… (#3411)

…ptimum branch

Author: aleksandr-mokrov

notebooks/gemma4/gemma4.ipynb

@@ -82,8 +82,8 @@
    "outputs": [],
    "source": [
     "%pip uninstall -q -y optimum optimum-intel optimum-onnx\n",
-    "%pip install -q \"git+https://github.com/rkazants/optimum-intel.git@support_gemma4\" --extra-index-url https://download.pytorch.org/whl/cpu\n",
-    "%pip install -qU --pre \"openvino\" \"nncf\" --extra-index-url https://storage.openvinotoolkit.org/simple/wheels/nightly\n",
+    "%pip install -q \"git+https://github.com/aleksandr-mokrov/optimum-intel.git@gemma4-moe-fixes\" --extra-index-url https://download.pytorch.org/whl/cpu\n",
+    "%pip install -qU --pre \"openvino\" \"openvino-tokenizers\" \"nncf\" --extra-index-url https://storage.openvinotoolkit.org/simple/wheels/nightly\n",
     "%pip install -q \"transformers==5.5.0\"\n",
     "%pip install -q \"torch>=2.10\" \"torchvision\" \"Pillow\" \"gradio>=6.0\" \"opencv-python\" \"requests\" \"matplotlib\" --extra-index-url https://download.pytorch.org/whl/cpu"
    ]