Use rm -r /var/lib/apt/lists/* in buildspec.yml
Use rm -r /var/lib/apt/lists/* in buildspec.yml

This commit builds on the previous commits to attempt to fix the currently failing deployments. Specifically, it will force the removal of any cached packages under `apt` to ensure that we are downloading new versions every time. This is taken from https://askubuntu.com/questions/760574/sudo-apt-get-update-failes-due-to-hash-sum-mismatch/760839.

openregister/openregister-java,openregister/openregister-java,openregister/openregister-java,openregister/openregister-java,openregister/openregister-java