Version 3.12.0

• 📚 Add hosts endpoint docs
• 📚 Add inbox Attachment docs
• 📚 Add Rental's residency category docs

• 📚 Add booking's external reference doc
• 🛠 Update clients samples
• 🐛 Fixed typo
• 🛠 Update vulnerable dependencies
• 🛠 Remove comment about bookings create validation
• 🛠 Remove notes from periods and seasons pages
• 📚 Understanding LOS Records guide
• 🛠 Update sprockets
• 📚 Add deprecation note about seasons and periods