v2.15.2

🐛 Bug Fix

• Ship new Banner component originally slated for v2.15.0 #1698 (@sghoweri)

Misc 🔧

• [skip travis] chore(release): release v2.15.2 (@bolt-bot)
• [skip travis] chore: version bump PHP-related dependencies to v2.15.2 (@bolt-bot)

Authors: 2

• Bolt Bot (@bolt-bot)
• Salem Ghoweri (@sghoweri)