chore(deps): bump kotlin_version in /example/android

Bumps `kotlin_version` from 1.7.22 to 1.8.22.

Updates `org.jetbrains.kotlin:kotlin-gradle-plugin` from 1.7.22 to 1.8.22
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/v1.8.22/ChangeLog.md)
- [Commits](https://github.com/JetBrains/kotlin/compare/v1.7.22...v1.8.22)

Updates `org.jetbrains.kotlin:kotlin-stdlib-jdk7` from 1.7.22 to 1.8.22
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/v1.8.22/ChangeLog.md)
- [Commits](https://github.com/JetBrains/kotlin/compare/v1.7.22...v1.8.22)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-gradle-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.jetbrains.kotlin:kotlin-stdlib-jdk7
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

 buildscript {
-    ext.kotlin_version = '1.7.22'
+    ext.kotlin_version = '1.8.22'
     repositories {
         google()
         mavenCentral()