Bug fixes

bug fixed Issue #3129802 by natew: Undefined index errors throughout

#3133044: Prepare for Drupal 9 Adjustments and tests for D9 compatibility.

Fix conflict with lazy_build on blocks

Issue #3133173 by jurgenhaas: Cleanup after projects:update leaves some directories behind
Issue #3133171 by jurgenhaas: Can't drop database 'drd_dump_43_default_default'; database doesn't exist

Drupal check issue fixed.

Drupal check issue fixed.