[backport/v1.23] tools, github: Add error handling and update README#23836

Merged

phlax merged 2 commits intoenvoyproxy:release/v1.23from

dio:write-version-update-1.23

Nov 5, 2022

Commits on Nov 4, 2022

backport: tools, github: Add error handling and update README
dio
committed
Merge remote-tracking branch 'upstream/release/v1.23' into write-version-update-1.23
dio
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