Bump AGP to 9.2.0 in sentry-java

[runningcode]

[linear-code]

JAVA-649

[sentry-pierre]

AGP is currently pinned to 8.13.1 in buildSrc/src/main/java/Config.kt, and the CI matrix only covers up to 8.9.0. A jump to 9.2.0 will need matrix updates and a review of breaking changes against the current Gradle and Kotlin toolchain.

What does 9.2.0 unblock, and are there known compatibility issues we should watch for?