fix(readiness): bump Odoo readinessProbe failureThreshold 2 -> 15

Heavy addon installs (e.g. ks_dashboard_ninja) blocked /web/login
probes for >10s, causing K8s to pull the Pod from Endpoints; Traefik
then 503d the operator addon-apply RPC. failureThreshold: 15 (~75s
of headroom) covers the install window without affecting true
pod-restart detection (initialDelay gates boot).

Chart 0.1.0 -> 0.1.1.

Chart.yaml

@@ -5,7 +5,7 @@ description: |
   Variation between instances is expressed via values.yaml only.
   No chart variants. No string-templating in Tower.
 type: application
-version: 0.1.0
+version: 0.1.1
 appVersion: "1.0"
 keywords:
   - odoo