fix poetry filepath issue to reference the correct pyproject.toml file

Author: jgbradley1

.devcontainer/entrypoint.sh

@@ -10,12 +10,12 @@ sudo chmod 666 /var/run/docker.sock
 ################################
 
 # Install graphrag dependencies
-cd /graphrag-accelerator
-poetry install --no-interaction -v
+ROOT_DIR=/graphrag-accelerator
+cd ${ROOT_DIR}
+poetry install --no-interaction -v --directory ${ROOT_DIR}/backend
 
 #########################
 ### Git configuration ###
 #########################
-
-git config --global --add safe.directory /graphrag-accelerator
+git config --global --add safe.directory ${ROOT_DIR}
 pre-commit install