RFR: Keep checking for incoming test results for a while

Fri Oct 9 07:06:29 UTC 2020

When a PR is updated with additional commits, test results may not yet be available when the summary is created. Keep
checking for a while in case they are just about to be triggered.

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Commit messages:
 - Keep checking for incoming test results for a while

Changes: https://git.openjdk.java.net/skara/pull/872/files
 Webrev: https://webrevs.openjdk.java.net/?repo=skara&pr=872&range=00
  Stats: 11 lines in 1 file changed: 11 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/skara/pull/872.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/872/head:pull/872

PR: https://git.openjdk.java.net/skara/pull/872