chore: prepare release v1.12.3

Author: raoulvdberge

CHANGELOG.md

@@ -7,6 +7,8 @@ to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## [1.12.3] - 2023-07-07
+
 ### Fixed
 
 -   Fixed not being able to type "e" in Grid search box.
@@ -3473,7 +3475,9 @@ to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 -   Internal test release.
 
-[Unreleased]: https://github.com/refinedmods/refinedstorage/compare/v1.12.2...HEAD
+[Unreleased]: https://github.com/refinedmods/refinedstorage/compare/v1.12.3...HEAD
+
+[1.12.3]: https://github.com/refinedmods/refinedstorage/compare/v1.12.2...v1.12.3
 
 [1.12.2]: https://github.com/refinedmods/refinedstorage/compare/v1.12.1...v1.12.2