Add 9.8-beta

Author: eabdullin1

config.yml

@@ -45,6 +45,7 @@ vault_versions:
   - "9.5-beta"
   - "9.6-beta"
   - "9.7-beta"
+  - "9.8-beta"
   - "10.0"
   - "10.0-beta"
   - "10.1-beta"