Update Android sample to Android 15

[linsang21]

Issue #:
N/A

Example:
Android

Description:

• Update the app to compile and target to Android 15
• Use latest Chime SDK

Testing:
Requested QA testing.

Checklist:

If it's CPP web calling example change:

1. Have you verified the change works in all supporting broswers?
2. Is integration tests chnage needed? If yes, please share the link for the change.

If it's iOS in-app calling example change:

1. Have you verified the change works in all supporting iOS vesions?
2. Is integration tests change needed? If yes, please share the link for the change.

If it's Android in-app calling example change:

1. Have you verified the change works in all supporting Android vesions?
2. Is integration tests change needed? If yes, please share the link for the change.

If it's bankend api example change, have you verified both iOS/Android in-app calling examples are compatible with this change?