Recommended versions updated

Author: CubeEngine Sponge Updater

recommended-versions.json

@@ -5,5 +5,6 @@
   "14": "1.21.4-14.0.0",
   "15": "1.21.5-15.0.0",
   "16": "1.21.8-16.0.0",
+  "17": "1.21.10-17.0.0",
   "8": "1.16.5-8.2.0"
 }