Merge pull request #4350 from esl/retry-codecov-upload

Exit codecov with non-zero code if fails to upload

Author: JanuszJakubiec

tools/circle-upload-codecov.sh

@@ -15,4 +15,4 @@ gpgv codecov.SHA256SUM.sig codecov.SHA256SUM
 shasum -a 256 -c codecov.SHA256SUM
 
 chmod +x codecov
-./codecov -t ${CODECOV_TOKEN} -e PRESET
+./tools/retry.sh ./codecov -t ${CODECOV_TOKEN} -e PRESET --nonZero