chore(deps): bump the dependencies group

Bumps the dependencies group in /example/example1 with 2 updates: com.diffplug.spotless and [org.jetbrains.kotlin.jvm](https://github.com/JetBrains/kotlin).


Updates `com.diffplug.spotless` from 7.0.3 to 7.0.4

Updates `org.jetbrains.kotlin.jvm` from 2.1.20 to 2.1.21
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.1.20...v2.1.21)

---
updated-dependencies:
- dependency-name: com.diffplug.spotless
  dependency-version: 7.0.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dependencies
- dependency-name: org.jetbrains.kotlin.jvm
  dependency-version: 2.1.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dependencies
...

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

Author: dependabot[bot]

example/example1/build.gradle

@@ -1,7 +1,7 @@
 plugins {
     id 'application'
-    id 'com.diffplug.spotless' version '7.0.3'
-    id 'org.jetbrains.kotlin.jvm' version '2.1.20'
+    id 'com.diffplug.spotless' version '7.0.4'
+    id 'org.jetbrains.kotlin.jvm' version '2.1.21'
 }
 
 application {