Release 1.7.0

[jordanmccullough]

This serves as the tracking issue for the upcoming 1.7.0 release of Training-Kit.

• Foundation curriculum updates Foundation curriculum updates #282

- [ ] Intermediate curriculum updates TBD
- [ ] Advanced curriculum updates TBD

• Liquid include deprecation Deprecate include for all slide panels in decks #287
• Improved slide styling Update style, remove custom components #288

[jordanmccullough]

Moving the curriculum content updates to a 0.0.x release, focusing on 1.7.0 for functionality, style only.

[jordanmccullough]

🚢ed! https://github.com/github/training-kit/releases/tag/1.7.0