fix(deps): update spotlessplugin to v8.4.0 (#835)

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

Author: renovate[bot]

gradle/libs.versions.toml

@@ -19,7 +19,7 @@ protobuf3 = "3.25.4"
 protobufPlugin = "0.9.6"
 shadowPlugin = "9.4.0"
 slf4j = "1.7.36"
-spotlessPlugin = "8.3.0"
+spotlessPlugin = "8.4.0"
 
 [bundles]
 # Bundles serve two purposes: