Bumping version to 1.11.2 and generate changelog

Author: FishtownBuildBot

.changes/1.11.2-rc1.md .changes/1.11.2.md.changes/1.11.2-rc1.md renamed to .changes/1.11.2.md

@@ -1,4 +1,4 @@
-## dbt-core 1.11.2-rc1 - December 22, 2025
+## dbt-core 1.11.2 - December 22, 2025
 
 ### Fixes
 

.changes/1.11.2/Fixes-20250922-151726.yaml

@@ -5,7 +5,7 @@
 - "Breaking changes" listed under a version may require action from end users or external maintainers when upgrading to that version.
 - Do not edit this file directly. This file is auto-generated using [changie](https://github.com/miniscruff/changie). For details on how to document a change, see [the contributing guide](https://github.com/dbt-labs/dbt-core/blob/main/CONTRIBUTING.md#adding-changelog-entry)
 
-## dbt-core 1.11.2-rc1 - December 22, 2025
+## dbt-core 1.11.2 - December 22, 2025
 
 ### Fixes
 

.changes/1.11.2/Fixes-20251219-184405.yaml

@@ -1 +1 @@
-version = "1.11.2rc1"
+version = "1.11.2"