Bump com.vanniktech:gradle-maven-publish-plugin from 0.27.0 to 0.28.0

Bumps [com.vanniktech:gradle-maven-publish-plugin](https://github.com/vanniktech/gradle-maven-publish-plugin) from 0.27.0 to 0.28.0.
- [Release notes](https://github.com/vanniktech/gradle-maven-publish-plugin/releases)
- [Changelog](https://github.com/vanniktech/gradle-maven-publish-plugin/blob/main/CHANGELOG.md)
- [Commits](vanniktech/gradle-maven-publish-plugin@0.27.0...0.28.0)

---
updated-dependencies:
- dependency-name: com.vanniktech:gradle-maven-publish-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

gradle/libs.versions.toml

@@ -6,7 +6,7 @@ dokka = "1.9.20"
 junit = "4.13.2"
 kotlin = "1.9.23"
 kotlinpoet = "1.16.0"
-mavenplugin = "0.27.0"
+mavenplugin = "0.28.0"
 moshi = "1.15.1"
 okhttp = "4.12.0"
 okio = "3.8.0"