Update K8s images in executors to v6.9.391

Author: DaedalusG

components/executors/dind/executor.Deployment.yaml

@@ -28,7 +28,7 @@ spec:
     spec:
       containers:
         - name: executor
-          image: index.docker.io/sourcegraph/executor:6.2.1106@sha256:1363cce32f2002594cad461380b223670e17de1f4466edee956a3404c7bbd172
+          image: us-docker.pkg.dev/sourcegraph-images/internal/executor:6.9.391@sha256:bc49f49f26690ba7459309b5a2e6fc3422f50091e7b80282362cd4445f6e35c1
           imagePullPolicy: Always
           livenessProbe:
             exec:
@@ -60,7 +60,7 @@ spec:
             - mountPath: /scratch
               name: executor-scratch
         - name: dind
-          image: index.docker.io/sourcegraph/dind:6.2.1106@sha256:c64b5efff14ccd82cd6957283b116ef195d374ec911ea7fe56787b93143810fd
+          image: us-docker.pkg.dev/sourcegraph-images/internal/dind:6.9.391@sha256:bafacc7c20402206daa4bcec2ceff2eb46ac9bf080e4fdfe4ce6b4b3d1ebe69f
           imagePullPolicy: Always
           securityContext:
             privileged: true