clang-tidy: Enable readability-qualified-auto check

This check aims to improve code readability by suggesting the use
of const auto * instead of auto for variables that are pointers
or iterators. This helps clarify the const-ness of the pointed-to
object or container elements.

Change-Id: I5fa46006aa5669834ebb144d32014f8882e563e3
Signed-off-by: Pavithra Barithaya <pavithrabarithaya07@gmail.com>
diff --git a/systemd_service_parser.cpp b/systemd_service_parser.cpp
index 46d9156..3258b36 100644
--- a/systemd_service_parser.cpp
+++ b/systemd_service_parser.cpp
@@ -15,7 +15,7 @@
         std::ifstream fileStream(jsonFile);
         auto j = json::parse(fileStream);
 
-        for (auto& service : j["services"].items())
+        for (const auto& service : j["services"].items())
         {
             if (gVerbose)
             {