fix(ci): disable generate-docs in devcontainer feature publish

The generate-docs step requires a token with write permissions to push
documentation back to the repo, causing 'Parameter token or opts.auth is
required' error. Disabled since docs can be maintained manually.

Author: GitLab CI

.github/workflows/devcontainer-feature.yml

@@ -27,4 +27,4 @@ jobs:
         with:
           publish-features: 'true'
           base-path-to-features: './packaging/devcontainer-feature/src'
-          generate-docs: 'true'
+          generate-docs: 'false'