Merge remote-tracking branch 'origin/11.x' into 3415572-adjust-menu-manipulator

.gitlab-ci.yml

.gitlab-ci/pipeline.yml

composer.json

composer.lock

composer/Metapackage/DevDependencies/composer.json

composer/Metapackage/PinnedDevDependencies/composer.json

composer/Plugin/VendorHardening/FileSecurity.php

core/.phpstan-baseline.php

core/MAINTAINERS.txt

core/core.api.php

core/core.libraries.yml

core/includes/batch.inc

core/includes/bootstrap.inc

core/includes/common.inc

core/includes/errors.inc

core/includes/form.inc

core/includes/install.core.inc

core/includes/install.inc

core/includes/theme.inc

core/includes/update.inc