Merge pull request #2787 from microsoft/copilot/add-dependabot-group-coverlet

chore(dependabot): add coverlet group

Author: baywet

.github/dependabot.yml

@@ -16,6 +16,9 @@ updates:
       MicrosoftExtensions:
         patterns:
           - "Microsoft.Extensions.*"
+      coverlet:
+        patterns:
+          - "coverlet.*"
   - package-ecosystem: dotnet-sdk
     directory: /
     schedule: