Apply $ZUUL_URL on parsoid jobs

Updates:

parsoid-parse-tool-check
parsoid-parsertests-run
parsoid-parsertests-run-harder
parsoid-php-parsertests
parsoid-regressions
parsoid-roundtrip-test-check
parsoidsvc-php-parsertests

Bug: 67583
Change-Id: I2bd90d77a1ad0d3e34834fd38a9c715c0aef3d37