make parsoid jobs runnable from slaves

Fetch the change from the Zuul server:
 http://integration.wikimedia.org/zuul/git/$ZUUL_PROJECT

Using the local Gerrit replica for reference:
 /srv/ssd/gerrit/$ZUUL_PROJECT.git

Jobs updated:
parsoid-parse-tool-check
parsoid-parsertests-run
parsoid-parsertests-run-harder
parsoid-php-parsertests
parsoid-regressions
parsoid-roundtrip-test-check

Change-Id: I6f73653cbdcd171b70d253b69ce6b95bd55ec9ed