Bump multiplatform from 2.0.10 to 2.0.20 (#946)

Bumps [multiplatform](https://github.com/JetBrains/kotlin) from 2.0.10 to 2.0.20.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](https://github.com/JetBrains/kotlin/commits)

---
updated-dependencies:
- dependency-name: multiplatform
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    kotlin("multiplatform") version "2.0.10" apply false
+    kotlin("multiplatform") version "2.0.20" apply false
     id("org.jetbrains.kotlinx.kover") version "0.8.3" apply false
 }