chore(deps): update dependency com.diffplug.spotless to v8.4.0

Author: renovate[bot]

gradle/libs.versions.toml

@@ -28,7 +28,7 @@ mockito = "5.23.0"
 mockitoInline = "5.2.0"
 mockitoKotlin = "2.2.0"
 timber = "5.0.1"
-spotless = "8.1.0"
+spotless = "8.4.0"
 core-ktx = "1.18.0"
 androidx-test-ext-junit = "1.3.0"
 espresso-core = "3.7.0"