ci(github): tidy eslint group in dependabot.yml

Author: remarkablemark

.github/dependabot.yml

@@ -16,13 +16,8 @@ updates:
       eslint:
         patterns:
           - '@eslint/*'
-      prettier:
-        patterns:
+          - 'eslint*'
           - prettier
-          - eslint-plugin-prettier
-      typescript-eslint:
-        patterns:
-          - '@typescript-eslint/*'
 
   - package-ecosystem: 'github-actions'
     directory: '/'