Bump com.diffplug.spotless from 6.25.0 to 7.0.0

Bumps com.diffplug.spotless from 6.25.0 to 7.0.0.

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Diff for: gradle/libs.versions.toml

@@ -7,7 +7,7 @@ kotlin = "2.1.0"
 mockk = "1.13.14"
 mockkSpring = "4.0.2"
 postgres = "42.7.4"
-spotless = "6.25.0"
+spotless = "7.0.0"
 springDependencyManagement = "1.1.7"
 springboot = "3.4.1"
 springdoc = "2.8.0"