fix Codecov upload action (#49)

Author: SVilgelm

.github/workflows/checks.yaml

@@ -52,9 +52,7 @@ jobs:
         run: go test -race -cover -coverprofile=coverage.out -covermode=atomic
 
       - name: Codecov
-        uses: codecov/codecov-action@985343d70564a82044c1b7fcb84c2fa05405c1a2 # v5.0.4
-        with:
-          file: ./coverage.out
+        uses: codecov/codecov-action@015f24e6818733317a2da2edd6290ab26238649a # v5.0.7
 
   GolangCI-Lint:
     runs-on: ubuntu-latest