feat(ci): add coverage

Author: rlibaert

.github/workflows/test.yml

@@ -20,6 +20,9 @@ jobs:
 
       - name: Race
         run: go test -v -race ./...
+        
+      - name: Update coverage badge
+        uses: ncruces/go-coverage-report@main
 
   golangci-lint:
     runs-on: ubuntu-latest