deps: update dependency com.squareup:sort-dependencies-gradle-plugin to v0.21.0

Author: renovate[bot]

gradle/libs.versions.toml

@@ -3,7 +3,7 @@ composePlugin = "1.11.1"
 detektPlugin = "2.0.0-alpha.6"
 graalvmPlugin = "1.1.9"
 kotlinPlugin = "2.4.10"
-sortDependenciesPlugin = "0.20.0"
+sortDependenciesPlugin = "0.21.0"
 
 bouncyCastle = "1.85.2"
 clikt = "5.1.0"