Update image to sha-476e3b2 [skip ci]

Author: github-actions[bot]

k8s/deployment.yaml

@@ -19,7 +19,7 @@ spec:
         io.kompose.service: proxy
     spec:
       containers:
-        - image: ghcr.io/fhswf/openai-proxy:sha-f9bd934
+        - image: ghcr.io/fhswf/openai-proxy:sha-476e3b2
           name: proxy
           ports:
             - containerPort: 3000