chore(deps): bump com.diffplug.spotless from 8.3.0 to 8.4.0

Bumps com.diffplug.spotless from 8.3.0 to 8.4.0.

---
updated-dependencies:
- dependency-name: com.diffplug.spotless
  dependency-version: 8.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -112,7 +112,7 @@ preferencesFix = "1.1.0"
 robolectric = "4.16.1"
 safeContentResolver = "1.0.0"
 searchPreference = "2.7.3"
-spotlessPlugin = "8.3.0"
+spotlessPlugin = "8.4.0"
 timber = "5.0.1"
 turbine = "1.2.1"
 uri = "0.0.21"