Update `handcuffs` to 2.0.0

[yevhenii-ponomarenko]

Update handcuffs gem to 2.0.0

Signed-off-by: Yevhenii Ponomarenko yevhenii.ponomarenko-contractor@procore.com

Checklist:

• [x] I have updated the necessary documentation
• [x] I have signed off all my commits as required by DCO
• [x] My build is green