Update K8s images in base to v6.9.391

Author: DaedalusG

base/sourcegraph/indexed-search/indexed-search.StatefulSet.yaml

@@ -33,7 +33,7 @@ spec:
               value: http://$(OTEL_AGENT_HOST):4317
             - name: OPENTELEMETRY_DISABLED
               value: "false"
-          image: index.docker.io/sourcegraph/indexed-searcher:6.2.1106@sha256:8d65ad2ea2a5d96de2b97a1a44dba440c4ba86af8db23c347b9e2866a7e67f38
+          image: us-docker.pkg.dev/sourcegraph-images/internal/indexed-searcher:6.9.391@sha256:592b89f750796345d4f619bcc9cf3055ab37713609cfc689bb462157b11df455
           terminationMessagePolicy: FallbackToLogsOnError
           ports:
             - containerPort: 6070
@@ -72,7 +72,7 @@ spec:
               value: http://$(OTEL_AGENT_HOST):4317
             - name: OPENTELEMETRY_DISABLED
               value: "false"
-          image: index.docker.io/sourcegraph/search-indexer:6.2.1106@sha256:5fa8876a85928f4df48c9d86cd010d5a7d14df2c7fe3d48e49b7f9ca5f7e54a0
+          image: us-docker.pkg.dev/sourcegraph-images/internal/search-indexer:6.9.391@sha256:47dfb8143125b3998f2a2dcfa6f4b3d927956e75dbe98327efe291be1f7ac2b0
           terminationMessagePolicy: FallbackToLogsOnError
           ports:
             - containerPort: 6072