Bump com.google.errorprone:error_prone_core from 2.27.1 to 2.28.0 (#113)

Bumps [com.google.errorprone:error_prone_core](https://github.com/google/error-prone) from 2.27.1 to 2.28.0.
- [Release notes](https://github.com/google/error-prone/releases)
- [Commits](google/error-prone@v2.27.1...v2.28.0)

---
updated-dependencies:
- dependency-name: com.google.errorprone:error_prone_core
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Ivan Vakhrushev <mfvanek@gmail.com>

build.gradle.kts

@@ -45,7 +45,7 @@ dependencies {
     //pitest("it.mulders.stryker:pit-dashboard-reporter:0.2.1")
     checkstyle("com.thomasjensen.checkstyle.addons:checkstyle-addons:7.0.1")
 
-    errorprone("com.google.errorprone:error_prone_core:2.27.1")
+    errorprone("com.google.errorprone:error_prone_core:2.28.0")
     errorprone("jp.skypencil.errorprone.slf4j:errorprone-slf4j:0.1.24")
 
     spotbugsPlugins("jp.skypencil.findbugs.slf4j:bug-pattern:1.5.0")