Bump com.google.errorprone:error_prone_core from 2.27.1 to 2.28.0 (#68)

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

build.gradle

@@ -36,7 +36,7 @@ dependencies {
     // dependencies added by the plugin
     // not used in the plugin code, but here Dependabot will keep them up to date
     addedDependencies "com.uber.nullaway:nullaway:0.10.26@jar"
-    addedDependencies "com.google.errorprone:error_prone_core:2.27.1@jar"
+    addedDependencies "com.google.errorprone:error_prone_core:2.28.0@jar"
 
     compileOnly    "org.jspecify:jspecify:0.3.0"
 }