Update all dependencies to v7 (#190)

| datasource | package                                                   | from   | to    |
| ---------- | --------------------------------------------------------- | ------ | ----- |
| maven      | com.diffplug.spotless:com.diffplug.spotless.gradle.plugin | 6.25.0 | 7.0.1 |
| maven      | com.diffplug.spotless:spotless-plugin-gradle              | 6.25.0 | 7.0.1 |

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

Author: renovate[bot]

libs.versions.toml

@@ -34,7 +34,7 @@ gradle-taskinfo = "2.2.0"
 junit = "5.11.4"
 kover = "0.9.0"
 detekt = "1.23.7"
-spotless = "6.25.0"
+spotless = "7.0.1"
 apache-log4j = "2.24.0"
 
 [libraries]