16.0.0

What's Changed

• fix: replaced taskcluster rest api calls with package by @abhishekmadan30 in #741
• fix(deps): update to image_builder 6.0.0 by @ahal in #783
• Use image_builder in build-image and load-task commands by @ahal in #785
• chore: version bump Taskgraph 16.0.0 by @ahal in #786

Full Changelog: 15.4.0...16.0.0