Bump org.jetbrains.kotlin:kotlin-gradle-plugin from 1.9.0 to 1.9.20

Bumps [org.jetbrains.kotlin:kotlin-gradle-plugin](https://github.com/JetBrains/kotlin) from 1.9.0 to 1.9.20.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.9.0...v1.9.20)

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

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

Author: dependabot[bot]

build.gradle

@@ -10,7 +10,7 @@ buildscript {
     dependencies {
         classpath 'com.google.gms:google-services:4.3.15'
         classpath 'com.android.tools.build:gradle:8.3.0-alpha13'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.0"
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.20"
     }
 }