build(deps): bump org.modelix.mps:build-tools-lib from 1.7.4 to 1.8.1

Bumps [org.modelix.mps:build-tools-lib](https://github.com/modelix/modelix.mps-build-tools) 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)

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

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

Author: dependabot[bot]

mps-diff-plugin/build.gradle.kts

@@ -4,7 +4,7 @@ import java.util.zip.ZipInputStream
 
 buildscript {
     dependencies {
-        classpath("org.modelix.mps:build-tools-lib:1.7.4")
+        classpath("org.modelix.mps:build-tools-lib:1.8.1")
     }
 }
 

mps-generator-execution-plugin/build.gradle.kts

@@ -3,7 +3,7 @@ import org.jetbrains.kotlin.gradle.dsl.KotlinVersion
 
 buildscript {
     dependencies {
-        classpath("org.modelix.mps:build-tools-lib:1.7.4")
+        classpath("org.modelix.mps:build-tools-lib:1.8.1")
     }
 }
 

mps-legacy-sync-plugin/build.gradle.kts

@@ -8,7 +8,7 @@ import java.util.zip.ZipInputStream
 
 buildscript {
     dependencies {
-        classpath("org.modelix.mps:build-tools-lib:1.7.4")
+        classpath("org.modelix.mps:build-tools-lib:1.8.1")
     }
 }