build(deps): bump modelix-core from 15.4.0 to 15.4.1

Bumps `modelix-core` from 15.4.0 to 15.4.1.

Updates `org.modelix:authorization` from 15.4.0 to 15.4.1
- [Release notes](https://github.com/modelix/modelix.core/releases)
- [Changelog](https://github.com/modelix/modelix.core/blob/main/.releaserc.json)
- [Commits](modelix/modelix.core@15.4.0...15.4.1)

Updates `org.modelix:model-client` from 15.4.0 to 15.4.1
- [Release notes](https://github.com/modelix/modelix.core/releases)
- [Changelog](https://github.com/modelix/modelix.core/blob/main/.releaserc.json)
- [Commits](modelix/modelix.core@15.4.0...15.4.1)

Updates `org.modelix:model-server` from 15.4.0 to 15.4.1
- [Release notes](https://github.com/modelix/modelix.core/releases)
- [Changelog](https://github.com/modelix/modelix.core/blob/main/.releaserc.json)
- [Commits](modelix/modelix.core@15.4.0...15.4.1)

Updates `org.modelix.mps:mps-sync-plugin3` from 15.4.0 to 15.4.1
- [Release notes](https://github.com/modelix/modelix.core/releases)
- [Changelog](https://github.com/modelix/modelix.core/blob/main/.releaserc.json)
- [Commits](modelix/modelix.core@15.4.0...15.4.1)

---
updated-dependencies:
- dependency-name: org.modelix:authorization
  dependency-version: 15.4.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.modelix:model-client
  dependency-version: 15.4.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.modelix:model-server
  dependency-version: 15.4.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.modelix.mps:mps-sync-plugin3
  dependency-version: 15.4.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -6,7 +6,7 @@ kotlinx-coroutines = "1.10.2"
 kotlin-logging = "3.0.5"
 ktor = "3.2.0"
 logback = "1.5.18"
-modelix-core = "15.4.0"
+modelix-core = "15.4.1"
 modelix-mps-plugins = "0.11.1"
 
 [libraries]