Fix KohaWebInstallAutomation.pl for upgrades.
Fix KohaWebInstallAutomation.pl for upgrades.

upgrade to 3.20 has skipped a confirmation step before upgrading database

digibib/koha-docker,digibib/koha-docker,digibib/koha-salt-docker,digibib/koha-docker,digibib/koha-salt-docker,digibib/koha-docker,digibib/koha-salt-docker,digibib/koha-salt-docker,digibib/koha-docker,digibib/koha-docker,digibib/koha-salt-docker