Add pandas to devcontainer

.devcontainer/Dockerfile

@@ -4,4 +4,5 @@ FROM registry.gitlab.com/lukenaylor/latex/sage-tex-chroma-image:latest
 RUN git clone --depth=1 --branch v0.20.4 https://github.com/tree-sitter/tree-sitter-rust.git /root/src/tree-sitter-rust
 # Install the pseudowalls sage package
 RUN /usr/bin/bash -c ". ~/.bashrc; sage -pip install pseudowalls --extra-index-url https://gitlab.com/api/v4/projects/43962374/packages/pypi/simple"
+RUN /usr/bin/bash -c ". ~/.bashrc; sage -pip install pandas"