chore(deps): update net.ltgt.gradle:gradle-errorprone-plugin to v4 (#412)

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

Author: renovate[bot]

gradle/libs.versions.toml

@@ -32,7 +32,7 @@ indra = "3.1.3"
 test-logger = "4.0.0"
 checkstyle = "10.17.0"
 errorprone = "2.28.0"
-errorprone-plugin = "3.1.0"
+errorprone-plugin = "4.0.0"
 nullaway = "0.11.0"
 nullaway-plugin = "2.0.0"
 nexusPublish = "2.0.0"