ci(release): trigger GitLab wheel publish workflows

[pimlock]

Summary

• add a temporary branch-check smoke job that triggers the GitLab wheel publish pipeline on the test infra branch
• trigger the GitLab wheel publish pipeline from both dev and tagged release workflows after GitHub release assets are created
• keep the existing GitHub-side Python publish flow in place while the GitLab path is being validated

Changes

• add internal-wheel-publish-smoke to .github/workflows/branch-checks.yml
• add trigger-wheel-publish jobs to .github/workflows/release-dev.yml and .github/workflows/release-tag.yml
• use GITLAB_CI_TRIGGER_URL and GITLAB_CI_TRIGGER_TOKEN secrets for the GitLab trigger call

Testing

• ruby -e 'require "yaml"; [".github/workflows/branch-checks.yml", ".github/workflows/release-dev.yml", ".github/workflows/release-tag.yml"].each { |p| YAML.load_file(p); puts "OK #{p}" }'

Checklist

• existing release publishing remains in place
• GitLab trigger runs only on internal runners
• workflow YAML parses successfully