Update dependency com.google.firebase:firebase-bom to v33.15.0

Author: renovate[bot]

gradle/libs.versions.toml

@@ -38,7 +38,7 @@ in-app-update = "2.1.0"
 secret-gradle-plugin = "2.0.1"
 google-services = "4.4.2"
 crashlytics = "3.0.3"
-firebase = "33.13.0"
+firebase = "33.15.0"
 admob = "24.2.0"
 oss-plugin = "0.10.6"
 oss = "17.1.0"