Update version.json for 2.0.15 release

version.json

@@ -1,5 +1,5 @@
 {
-  "version": "2.0.15-build.{height}",
+  "version": "2.0.15",
   "publicReleaseRefSpec": [
     "^refs/heads/main$", // we release out of main
     "^refs/heads/rel/\\d+\\.\\d+\\.\\d+" // we also release branches starting with rel/N.N.N
@@ -12,4 +12,4 @@
       "enabled": false
     }
   }
-}
+}