bot: Updated coverage badge.

Signed-off-by: sustainable-computing-bot <[email protected]>

Author: sustainable-computing-bot

README.md

@@ -1,7 +1,7 @@
 <img align="right" width="250px" src="https://user-images.githubusercontent.com/17484350/138557170-d8079b94-a517-4366-ade8-8d473e3f3f1d.jpg">
 
 ![GitHub Workflow Status (event)](https://img.shields.io/github/workflow/status/sustainable-computing-io/kepler/Unit%20test?label=CI)
-![Coverage](https://img.shields.io/badge/Coverage-42.9%25-yellow)
+![Coverage](https://img.shields.io/badge/Coverage-42.3%25-yellow)
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