build(deps): bump modelixBuildtools from 1.7.4 to 1.8.1

Bumps `modelixBuildtools` from 1.7.4 to 1.8.1.

Updates `org.modelix.mps:build-tools-gradle` from 1.7.4 to 1.8.1

Updates `org.modelix.mps:build-tools-lib` from 1.7.4 to 1.8.1
- [Release notes](https://github.com/modelix/modelix.mps-build-tools/releases)
- [Changelog](https://github.com/modelix/modelix.mps-build-tools/blob/main/.releaserc.json)
- [Commits](modelix/modelix.mps-build-tools@1.7.4...1.8.1)

Updates `org.modelix.mps.build-tools` from 1.7.4 to 1.8.1

---
updated-dependencies:
- dependency-name: org.modelix.mps:build-tools-gradle
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.modelix.mps:build-tools-lib
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.modelix.mps.build-tools
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -32,7 +32,7 @@ kotlinSerialization="1.8.0"
 ignite="2.16.0"
 apacheCxf="3.6.5"
 node="22.13.1"
-modelixBuildtools="1.7.4"
+modelixBuildtools="1.8.1"
 openapi = "7.11.0"
 micrometer = "1.14.3"
 dokka = "2.0.0"