jobqueue: Move jobqueue out of internal

internal/dnfjson/dnfjson.go

@@ -442,6 +442,17 @@ func parseError(data []byte, repos []repoConfig) Error {
 
 	return e
 }
+func ParseError(data []byte) Error {
+	var e Error
+	if err := json.Unmarshal(data, &e); err != nil {
+		// dumping the error into the Reason can get noisy, but it's good for troubleshooting
+		return Error{
+			Kind:   "InternalError",
+			Reason: fmt.Sprintf("Failed to unmarshal dnf-json error output %q: %s", string(data), err.Error()),
+		}
+	}
+	return e
+}
 
 func run(dnfJsonCmd []string, req *Request) ([]byte, error) {
 	if len(dnfJsonCmd) == 0 {