Update errorProneVersion to v2.28.0 (#1334)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

dependencyManagement/build.gradle.kts

@@ -19,7 +19,7 @@ val DEPENDENCY_BOMS = listOf(
 
 val autoServiceVersion = "1.1.1"
 val autoValueVersion = "1.11.0"
-val errorProneVersion = "2.27.1"
+val errorProneVersion = "2.28.0"
 val prometheusVersion = "0.16.0"
 val mockitoVersion = "4.11.0"
 val slf4jVersion = "2.0.13"