utility: dedup_variant: rename in C++14 '_t' style

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I10590aca0d68fe50caf0f36819fea2d73016370f
diff --git a/test/utility/type_traits.cpp b/test/utility/type_traits.cpp
index e1e9473..81fa076 100644
--- a/test/utility/type_traits.cpp
+++ b/test/utility/type_traits.cpp
@@ -85,11 +85,12 @@
 
 // Tests for dedup_variant.
 static_assert(std::is_same_v<std::variant<size_t>,
-                             sdbusplus::utility::dedup_variant<size_t>>);
-static_assert(std::is_same_v<std::variant<char, size_t>,
-                             sdbusplus::utility::dedup_variant<char, size_t>>);
+                             sdbusplus::utility::dedup_variant_t<size_t>>);
+static_assert(
+    std::is_same_v<std::variant<char, size_t>,
+                   sdbusplus::utility::dedup_variant_t<char, size_t>>);
 static_assert(std::is_same_v<
               std::variant<uint32_t, uint64_t>,
-              sdbusplus::utility::dedup_variant<uint32_t, uint64_t, size_t>>);
+              sdbusplus::utility::dedup_variant_t<uint32_t, uint64_t, size_t>>);
 
 } // namespace