v1.3.45: switch ezsystems/doctrine-dbal-schema to se7enxweb fork

Changes

• fix(deps): replace ezsystems/doctrine-dbal-schema: ^1.0@dev with se7enxweb/doctrine-dbal-schema: ^1.0@dev

Why

Requiring the ezsystems original caused it to be installed alongside se7enxweb/doctrine-dbal-schema, producing ambiguous class resolution warnings on composer dump-autoload. The se7enxweb fork (>=v1.0.11) declares a replace for the ezsystems original.