Updated the pack's version so it will no longer give errors

Whoops, almost forgot this update existed...

• Added the Creator (Rap) record sound for the new music disc

Updated the pack's format number and release number

Very minor update for version 1.2 of the Barely Default Data Pack:

• Added the old player hurt sound for when player heads obtained by the new Head Hunter enchantment are placed on note blocks

This update adds:

• Confetti cannon sound effect for the upcoming 1.21.4 data pack port
• Music disc ogg files originally in the Barely Default resource pack