build(deps): bump node in /examples/shared/node

Bumps node from 20.2-bullseye-slim to 22.8-bullseye-slim.

---
updated-dependencies:
- dependency-name: node
  dependency-type: direct:production
...

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

examples/shared/node/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:20.2-bullseye-slim@sha256:dc1906714d1993d291e1e7b5f236291236b0a0b6dfacdb164e4a9ea44d09c52e as node-base
+FROM node:22.8-bullseye-slim@sha256:c6e55b1a54a1626b05dfa757e8f8b0ee3c1350816d8ad022aa84a7ef4c5ed5b2 as node-base
 
 
 FROM node-base as node-http-auth