Update dependabot configuration to set versioning strategy for 'flet' group

Author: ndonkoHenri

.github/dependabot.yml

@@ -7,12 +7,12 @@ updates:
       interval: "cron"
       cronjob: "15 * * * *"   # every 15 minutes
     open-pull-requests-limit: 1
+    versioning-strategy: "increase"
     allow:
       - dependency-name: "flet*"
 
     groups:
       flet:
         applies-to: version-updates
-        versioning-strategy: "increase"
         patterns:
           - "flet*"