Bump org.jetbrains.kotlin.jvm from 1.7.22 to 1.8.0 in /examples

Bumps [org.jetbrains.kotlin.jvm](https://github.com/JetBrains/kotlin) from 1.7.22 to 1.8.0.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.7.22...v1.8.0)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin.jvm
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

examples/spring-boot-kotlin-redis/build.gradle

@@ -1,6 +1,6 @@
 plugins {
     id("org.springframework.boot") version "2.7.6"
-    id("org.jetbrains.kotlin.jvm") version "1.7.22"
+    id("org.jetbrains.kotlin.jvm") version "1.8.0"
     id("org.jetbrains.kotlin.plugin.spring") version "1.7.22"
 }