Pin sam2 commit (#217)

* pin sam2 repo to commit before renaming and path changes

* update repo dependency to match upstream renaming

runner/docker/Dockerfile.segment_anything_2

@@ -1,22 +1,5 @@
 FROM livepeer/ai-runner:base
 
-RUN pip install --no-cache-dir torch==2.3.1 torchvision==0.18.1 torchaudio==2.3.1 xformers==0.0.27
-
-# Clone the segment-anything-2 repo to a temporary directory
-RUN git clone https://github.com/facebookresearch/segment-anything-2.git /tmp/segment-anything-2
-
-# Set working directory to the cloned repo
-WORKDIR /tmp/segment-anything-2
-
-# Run the build command
-RUN python setup.py build_ext --inplace && \
-    pip install . && \
-    rm -rf /tmp/segment-anything-2  # Clean up after installation
-
-# Return to the default working directory
-WORKDIR /app
-
-# Copy your application code
-COPY app/ /app/app
+RUN pip install --no-cache-dir torch==2.3.1 torchvision==0.18.1 torchaudio==2.3.1 xformers==0.0.27 git+https://github.com/facebookresearch/sam2.git@0f6515ae853c40420ea8e3dd250f8031bbf03023#egg=sam-2
 
 CMD ["uvicorn", "app.main:app", "--log-config", "app/cfg/uvicorn_logging_config.json", "--host", "0.0.0.0", "--port", "8000"]