Exclude subdirectories from coverage tests

Author: TomTonic

.github/workflows/coverage.yml

@@ -24,7 +24,7 @@ jobs:
           go-version-file: go.mod
 
       - name: Run tests and generate coverage report
-        run: go test ./... -coverprofile=./cover.out -covermode=atomic -coverpkg=./...
+        run: go test ./ -coverprofile=./cover.out -covermode=atomic -coverpkg=./
 
       - name: Generate coverage badge
         uses: vladopajic/go-test-coverage@cc5012c2cfa84542e02b079141958a885861d326 # v2.17.0