Accessibility: Makes tag colors more accessible (#22398)

solves issue #22396

packages/grafana-ui/src/utils/tags.ts

 const TAG_COLORS = [
-  '#E24D42',
-  '#1F78C1',
-  '#BA43A9',
+  '#D32D20',
+  '#1E72B8',
+  '#B240A2',
   '#705DA0',
   '#466803',
-  '#508642',
-  '#447EBC',
-  '#C15C17',
+  '#497A3C',
+  '#3D71AA',
+  '#B15415',
   '#890F02',
-  '#757575',
+  '#6E6E6E',
   '#0A437C',
   '#6D1F62',
   '#584477',
-  '#629E51',
+  '#4C7A3F',
   '#2F4F4F',
   '#BF1B00',
-  '#806EB7',
-  '#8a2eb8',
-  '#699e00',
+  '#7662B1',
+  '#8A2EB8',
+  '#517A00',
   '#000000',
   '#3F6833',
   '#2F575E',
   '#99440A',
-  '#E0752D',
+  '#AE561A',
   '#0E4AB4',
   '#58140C',
   '#052B51',