Release 9.6.8

Feature

Add dragHandler option for nodes.

• test(draghandle): add basic tests #1552 (c5ce586)
• Merge branch 'datoslabs-add-node-dragHandle' (5d2f08c)
• Add optional node dragHandle prop as DraggableCore handle. (0d497b6)

Fixes

• PR #1512: Fix when edge disappears when connecting an edge to update to a new node (eff3e72)

Refactoring & Chore

Update dependencies & add engines attribute to package.json