[CI] Rollup of 5 pull requests
Successful merges:
- #62140 (ci: Turn off PR builds on Travis)
- #62141 (ci: Disable assertions in PR builds)
- #62142 (ci: Switch official `try` builds to happen on Azure)
- #62143 (ci: Publish toolstate changes from Azure)
- #62145 (ci: Sync AppVeyor/Travis with Azure configuration)
Failed merges:
r? @ghost