chore(deps): update error-prone monorepo to v2.31.0 (#434)

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

gradle/libs.versions.toml

@@ -31,7 +31,7 @@ annotations = "24.1.0"
 indra = "3.1.3"
 test-logger = "4.0.0"
 checkstyle = "10.18.0"
-errorprone = "2.30.0"
+errorprone = "2.31.0"
 errorprone-plugin = "4.0.1"
 nullaway = "0.11.2"
 nullaway-plugin = "2.0.0"