v1.9.0

ConstraintTrees v1.9.0

Diff since v1.8.0

Merged pull requests:

• use broadcastable() as the broadcasting interface for Values and Bounds (#63) (@exaexa)
• fix status badge (#64) (@exaexa)
• fix things (#65) (@exaexa)
• Bump julia-actions/setup-julia from 1 to 2 (#66) (@dependabot[bot])
• Bump codecov/codecov-action from 4 to 5 (#67) (@dependabot[bot])