[DO-1716] add valkey for tavro-cloud-test (!147)

Co-authored-by: Rustam Tagaev <rustam.tagaev@avroid.tech>
Reviewed-on: https://git.avroid.tech/K8s/k8s-configs/pulls/147

clusters/k8s-avroid-office.prod.local/namespaces/tavro-cloud-test/valkey/valkey-network-policy.yaml

@@ -0,0 +1,17 @@
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: valkey-in
+  namespace: tavro-cloud-test
+  labels:
+    app.kubernetes.io/managed-by: manual
+spec:
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/name: valkey
+  policyTypes:
+    - Ingress
+  ingress:
+    - ports:
+        - port: 6379
+          protocol: TCP