Fix solution retrieval in lunar lander eval

[btjanaka]

Description

Previously, the script retrieved solutions incorrectly due to the reordering of columns in archive.data() compared to archive.as_pandas().

Status

• [x] I have read the guidelines in CONTRIBUTING.md
• [x] I have formatted my code using yapf
• [x] I have tested my code by running pytest
• [x] I have linted my code with pylint
• [x] I have added a one-line description of my change to the changelog in HISTORY.md
• [x] This PR is ready to go