tower 0.61.3 — fix CF token Vault key mismatch

cloudflare_resolver.go reads data['token'] but the writer (and the
test endpoint) stores under data['api_token']. Result: every fresh
tenant's CF resolver returned no token even when one was saved,
killing DNS records view AND any instance lifecycle DNS write.

Caught while smoke-testing the multi-tenant signup flow.

values.yaml

@@ -9,7 +9,7 @@ backend:
     # so every cluster that runs Tower needs the same imagePullSecret
     # provisioned out-of-band (until cluster-platform-v3 owns it).
     repository: registry.odoosky.cloud/odoosky/docker-mirror/tower
-    tag: "0.61.2"
+    tag: "0.61.3"
     pullPolicy: IfNotPresent
   imagePullSecrets:
     - name: docker-mirror-pull