chore: update new DNS provider issue template

Author: ldez

.github/ISSUE_TEMPLATE/new_dns_provider.yml

@@ -1,6 +1,6 @@
 name: New DNS provider support
 description: Request for the support of a new DNS provider.
-title: "Support for provider: "
+title: "Support for provider: <put the name of your provider>"
 labels: [enhancement, new-provider]
 body:
   - type: checkboxes