internal: give tests more time
Tests are bumping up to the 45m limit. Bump limit to 60m.
See:
@@ -70,6 +70,6 @@ create_junit_xml() {
trap create_junit_xml EXIT ERR
# Run tests and tee output to log file, to be pushed to GCS as artifact.
-go test -race -v -timeout 45m ./... 2>&1 \
+go test -race -v -timeout 60m ./... 2>&1 \
| tee $KOKORO_ARTIFACTS_DIR/$KOKORO_GERRIT_CHANGE_NUMBER.txt
