v0.4.21 September 13, 2023 Release

What's Changed

• Update DD tutorial notebook by @paaige in #689
• Update Superstaq login link by @stephanielee9 in #749
• Fix IBMQ compile notebook links to Colab/binder by @perlinm in #753
• Update notebook reqs by @knsmith in #754
• SupertechLabs --> Infleqtion by @perlinm in #756
• Superstaq email -> other email by @bharat-thotakura in #757
• Update ibmq_dd.ipynb printed text by @knsmith in #755
• Update ibmq_dd.ipynb by @knsmith in #758
• add missing requirements by @perlinm in #759
• import after pip installing in notebooks by @perlinm in #760
• add error_rates argument to qscout_compile (to support noise-aware mapping) by @richrines1 in #764
• bump version to 0.4.21 by @richrines1 in #765

Full Changelog: v0.4.20...v0.4.21