v1.55.0
Fix generation of release notes for nightly builds
Clang 9 is already in the image. (#22000)
Minor tweaks to build documentation
add should sign and make code-signing conditional
remove lint caching
Update the macOS Azure CI image to macos-10.15 (#21318)
Merge pull request #20632
Bump pr-changelog
relocate lint.yml
add Lint as release dependency
Reformat all JS files using prettier
Cache node_modules on Azure Pipelines based on package-lock.json