add MQTT and Redis config to fiesta; sync image tag to v1.3.93

Adds MQTT broker and Redis connection env vars to the fiesta
StatefulSet. Also corrects the image tag, which had drifted stale
in the repo at v1.3.90 while the cluster and the server copy of
the manifest were both already running v1.3.93.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

manifests/nearle/nearle-fiesta.yaml

@@ -47,7 +47,7 @@ spec:
             app: fiesta
       containers:
       - name: backend
-        image: nearlecommerce/fiesta:v1.3.90
+        image: nearlecommerce/fiesta:v1.3.93
         imagePullPolicy: Always
         securityContext:
           allowPrivilegeEscalation: false
@@ -74,6 +74,22 @@ spec:
             secretKeyRef:
               name: nats-credentials
               key: password
+        - name: MQTT_URL
+          value: "tcp://66.116.225.226:1883"
+        - name: MQTT_USER
+          value: "pos_ingest"
+        - name: MQTT_PASSWORD
+          value: "AXbEPrNDWnMLdp7T1tFETwyU"
+        - name: REDIS_HOST
+          value: "66.116.226.255"
+        - name: REDIS_PORT
+          value: "6379"
+        - name: REDIS_USER
+          value: "default"
+        - name: REDIS_PASSWORD
+          value: "Package@324969#"
+        - name: REDIS_DB
+          value: "0"
 ---
 apiVersion: v1
 kind: Service