Decrease transparency

Author: simurai

src/labels/counters.scss

@@ -11,7 +11,7 @@
   color: $text-gray-dark;
   text-align: center;
   // stylelint-disable-next-line primer/colors
-  background-color: rgba($gray-300, 0.4);
+  background-color: rgba($gray-300, 0.5);
   // stylelint-disable-next-line primer/borders
   border-radius: 2em;