Core 11.1.x is released, update next_minor_dev to 11.2.x
Problem/Motivation
Core 11.1.x is released. See this failing 'check versions' test
https://git.drupalcode.org/issue/gitlab_templates-3483075/-/pipelines/326630
Proposed resolution
Update script constant NEXT_MINOR_DEV from 11.1.x to 11.2.x
Independently, not caused by this change directly, update pipeline variable CORE_NEXT_MINOR from 11.x-dev to 11.1.x-dev