check-build-and-verify.sh: gzip the report before encoding.

Try to workaround TravisCI problem when it trims builds output.
Details: travis-ci/travis-ci#8189

No functional changes.

Author: php-coder

src/main/scripts/ci/check-build-and-verify.sh

@@ -233,10 +233,10 @@ if [ "$DANGER_STATUS" != 'skip' ]; then
 fi
 
 # In order to be able debug robot framework test flakes we need to have a report.
-# Just encode it to a binary form and dump to console.
+# Just encode it to a gzipped binary form and dump to console.
 if fgrep -qs 'status="FAIL"' target/robotframework-reports/output.xml; then
 	echo "===== REPORT START ====="
-	base64 target/robotframework-reports/log.html
+	cat target/robotframework-reports/log.html | gzip -c | base64
 	echo "===== REPORT END ====="
 fi