Add g_get_language_names_with_category() to the suppressions file

It's another one-off allocation, mostly triggered by GKeyFile.

Fixes: #2135

glib.supp

@@ -443,6 +443,33 @@
 	fun:g_get_language_names
 }
 
+{
+        g-get-language_names-with-category-malloc
+        Memcheck:Leak
+        match-leak-kinds:reachable
+        fun:malloc
+        ...
+        fun:g_get_language_names_with_category
+}
+
+{
+        g-get-language_names-with-category-calloc
+        Memcheck:Leak
+        match-leak-kinds:reachable
+        fun:calloc
+        ...
+        fun:g_get_language_names_with_category
+}
+
+{
+        g-get-language_names-with-category-realloc
+        Memcheck:Leak
+        match-leak-kinds:reachable
+        fun:realloc
+        ...
+        fun:g_get_language_names_with_category
+}
+
 {
 	g-static-mutex
 	Memcheck:Leak