22.0.0

What's Changed

• Move git notes fetching from run-task to the decision task and make them optional by @Eijebong in #935
• Remove the unused tooltool.py script in external_tools by @Eijebong in #932
• Don't let note fetching stderr appear in logs unless fatal by @Eijebong in #936
• Remove references to relengapi-proxy by @Eijebong in #933
• Prevent tests from using the user and system git config by @Eijebong in #934
• chore: version bump Taskgraph 22.0.0 by @ahal in #937

Full Changelog: 21.0.0...22.0.0