Gradle: Bump com.diffplug.spotless from 7.0.2 to 7.0.3

Bumps com.diffplug.spotless from 7.0.2 to 7.0.3.

---
updated-dependencies:
- dependency-name: com.diffplug.spotless
  dependency-version: 7.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

build.gradle.kts

@@ -37,7 +37,7 @@ plugins {
   kotlin("jvm") version kotlinVersion
   kotlin("plugin.spring") version kotlinVersion apply false
   id("pl.allegro.tech.build.axion-release") version "1.18.18"
-  id("com.diffplug.spotless") version "7.0.2"
+  id("com.diffplug.spotless") version "7.0.3"
   id("org.springframework.boot") version "3.4.4" apply false
   id("project-report")
   id("org.owasp.dependencycheck") version "12.1.0"