Update dependabot config to group updates

Added groups for fontawesome and eslint in the dependabot configuration
to better manage dependency updates.

Author: lkiesow

.github/dependabot.yml

@@ -5,6 +5,14 @@ updates:
   directory: /
   schedule:
     interval: monthly
+  groups:
+    fontawesome:
+      patterns:
+        - "@fortawesome*"
+    eslint:
+      patterns:
+        - "@esline*"
+        - "eslint"
 
 - package-ecosystem: github-actions
   directory: /