fix: Fix GitHub pull request mergeability for rerun checks #5051
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what
This PR modifies the evaluation logic for statusContexts and checkRuns by iterating from the end of the arrays instead of the beginning.
why
There is an issue described in detail in #5048 where Atlantis still treats a PR as unmergeable after successfully rerunning failed required checks. It responds with the error
Apply Failed: Pull request must be mergeable before running apply.
when attempting to use theatlantis apply
command.Upon investigating this issue, I discovered that GitHub returns all statusContexts/checkRuns in chronological order when Atlantis retrieves a pull request's last commit mergeability status. However, Atlantis iterates through these statusContexts/checkRuns and retrieves the first statusContext/checkRun instead of the last one, which represents the current status.
tests
references
Fixes #5048