fix(deps): update dependency @netlify/build to v29.11.6 (#5751)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package-lock.json

@@ -78,7 +78,7 @@
   "dependencies": {
     "@bugsnag/js": "7.20.2",
     "@fastify/static": "6.10.1",
-    "@netlify/build": "29.11.5",
+    "@netlify/build": "29.11.6",
     "@netlify/build-info": "7.0.2",
     "@netlify/config": "20.4.3",
     "@netlify/edge-bundler": "8.15.0",