Update K8s images in base to v6.9.391

Author: DaedalusG

base/sourcegraph/redis/redis-store.Deployment.yaml

@@ -25,7 +25,7 @@ spec:
     spec:
       containers:
         - name: redis-store
-          image: index.docker.io/sourcegraph/redis-store:6.2.1106@sha256:74ce6130fa0e11e4c853129f24bcba6a4044def3d18f86e389b3064ec2193175
+          image: us-docker.pkg.dev/sourcegraph-images/internal/redis-store:6.9.391@sha256:ba2d6f93e784e712a0ae5a4121dc1f0c48e3d098464f0ce86bf7d629a95e960c
           terminationMessagePolicy: FallbackToLogsOnError
           livenessProbe:
             initialDelaySeconds: 30
@@ -69,7 +69,7 @@ spec:
             - mountPath: /redis-data
               name: redis-data
         - name: redis-exporter
-          image: index.docker.io/sourcegraph/redis_exporter:6.2.1106@sha256:5974c85aae470ecd7c565862a16592887f4d111a28ef0e3bb1e400323540a397
+          image: us-docker.pkg.dev/sourcegraph-images/internal/redis_exporter:6.9.391@sha256:3438e26b34a7070f7591a6b5f55474577e576b2d74007f77a008628b335cd31a
           terminationMessagePolicy: FallbackToLogsOnError
           ports:
             - containerPort: 9121