chore(dev): chore: Update devcontainer prebuilt image reference (#2240)

Prebuilt devcontainer image reference updated to reflect latest config.

This automation in driven by the [workspaces-image-builder service](https://sdp.ddbuild.io/#/services/details?name=workspaces-imagebuilder) and the [github-devcontainer-prebuild service](https://sdp.ddbuild.io/#/services/details?name=github-devcontainer-prebuild).

For workspaces on-call: If there are any unexpected behaviors with this automation, see the [troubleshooting runbook](https://datadoghq.atlassian.net/wiki/spaces/DEVX/pages/4880237711/Troubleshooting+Devcontainer+Pre-Builds).




Co-authored-by: matt.briggs <matt.briggs@datadoghq.com>

Author: gh-worker-campaigns-3e9aa4[bot]

.devcontainer/datadog/default/devcontainer.json

@@ -1,5 +1,5 @@
 // This devcontainer directs workspaces to use a pre-built image.  To make
 // configuration changes, edit prebuild-devcontainer.json in this folder instead
 {
-    "image": "registry.ddbuild.io/workspaces/prebuilt/datadog/saluki@sha256:92ab6f720486da4947b22a32c6dd3e4e97f8a542b6cd089dc1b9b7611983f92f"
+    "image": "registry.ddbuild.io/workspaces/prebuilt/datadog/saluki@sha256:64aa6699654e73a664984b210a95c50ede74766dadfec5c8b05c3c1352911564"
 }