Retry gh api on transient failures in classify-pr action#108
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GitHub's API occasionally returns a 5xx HTML error page, which causes gh api --jq to exit non-zero with a JSON parse error like 'invalid character \'<\' looking for beginning of value'. Add a short retry loop with exponential backoff (3 attempts, 2s/4s) so transient flakes don't flunk the run.
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Summary
gh apicall in.github/actions/classify-pr/action.yml.gh api --jqto exit non-zero with a JSON parse error likeinvalid character '<' looking for beginning of value. Without retry, that single transient flake flunks the entire matrix leg.classify-prbecause the API call hit a 5xx, while every other leg passed. Re-running the failed job alone made it green.