Removes quadprog from docker container (#384)

# Description

Removes quadprog from docker container due to licensing issues. This is
a workaround since it gets pulled from pin-pink, but we do not need to
use the package for anything.


## Type of change

<!-- As you go through the list, delete the ones that are not
applicable. -->

- Bug fix (non-breaking change which fixes an issue)


## Checklist

- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./isaaclab.sh --format`
- [x] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file
- [ ] I have added my name to the `CONTRIBUTORS.md` or my name already
exists there

<!--
As you go through the checklist above, you can mark something as done by
putting an x character in it

For example,
- [x] I have done this task
- [ ] I have not done this task
-->

docker/Dockerfile.base

@@ -87,6 +87,9 @@ RUN touch /bin/nvidia-smi && \
 RUN --mount=type=cache,target=${DOCKER_USER_HOME}/.cache/pip \
     ${ISAACLAB_PATH}/isaaclab.sh --install
 
+# HACK: Remove install of quadprog dependency
+RUN ${ISAACLAB_PATH}/isaaclab.sh -p -m pip uninstall -y quadprog
+
 # aliasing isaaclab.sh and python for convenience
 RUN echo "export ISAACLAB_PATH=${ISAACLAB_PATH}" >> ${HOME}/.bashrc && \
     echo "alias isaaclab=${ISAACLAB_PATH}/isaaclab.sh" >> ${HOME}/.bashrc && \