docs(samples): add example tags to generated samples (#563)

- [ ] Regenerate this pull request now.

PiperOrigin-RevId: 408439482

Source-Link: googleapis/googleapis@b9f6184

Source-Link: https://github.com/googleapis/googleapis-gen/commit/eb888bc214efc7bf43bf4634b470254565a659a5
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiZWI4ODhiYzIxNGVmYzdiZjQzYmY0NjM0YjQ3MDI1NDU2NWE2NTlhNSJ9

automl/package.json

@@ -4,7 +4,7 @@
   "license": "Apache-2.0",
   "author": "Google LLC",
   "engines": {
-    "node": ">=8"
+    "node": ">=10"
   },
   "repository": "googleapis/nodejs-automl",
   "private": true,