chore(deps): update net.ltgt.gradle:gradle-nullaway-plugin to v2.2.0 (#455)

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

Author: renovate[bot]

gradle/libs.versions.toml

@@ -34,7 +34,7 @@ checkstyle = "10.18.1"
 errorprone = "2.31.0"
 errorprone-plugin = "4.1.0"
 nullaway = "0.11.2"
-nullaway-plugin = "2.1.0"
+nullaway-plugin = "2.2.0"
 nexusPublish = "2.0.0"
 shadow = "8.1.8"