Fix installation job issues

[btjanaka]

Description

The installation job has been failing recently on Mac. Upgrading the miniconda setup should fix this.

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
• [N/A] I have added a one-line description of my change to the changelog in HISTORY.md
• [x] This PR is ready to go