chore(deps): bump node in /infra/containers/sandbox

Bumps node from 22.22.2-bookworm-slim to 26.5.0-bookworm-slim.

---
updated-dependencies:
- dependency-name: node
  dependency-version: 26-bookworm-slim
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

infra/containers/sandbox/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:22.22.2-bookworm-slim@sha256:9f6d5975c7dca860947d3915877f85607946403fc55349f39b4bc3688448bb6e
+FROM node:26.5.0-bookworm-slim@sha256:2d49d876e96237d76de412761cf05dbfe5aee325cc4406a4d41d5824c5bb8beb
 
 ARG CODE_SERVER_VERSION=4.128.0
 ARG CODE_SERVER_SHA256=79ba26bf186e5268a22b7c17b30a5f288a16c37791f0b86c27859e8fef103188