Fix several jenkins-ci issues
Fix several jenkins-ci issues

Skip waiting loop if /var/lib/mysql folder is already present
It seems this case happens on jenkins-ci@lbbstaging even if I could
not reproduce it myself on lbbstaging.

Increase ES timeout during tests.

StartupsPoleEmploi/labonneboite,StartupsPoleEmploi/labonneboite,StartupsPoleEmploi/labonneboite,StartupsPoleEmploi/labonneboite