PR comments are combined when there are multiple jobs

[adamhenson]

Summary

When multiple jobs exist using foo-software/lighthouse-check-action@master with PR commenting enabled and when prCommentSaveOld is not set to true... result comments from both jobs are merged to one. See screenshots below. This is reproduced in #45. In this example comments are merged from the the two workflows found in comment-on-push.yml and foo-api.yml.

[stale]

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[adamhenson]

This was fixed in #45