Update core_version to v1.9.0 (1.8.x.x) (#259)

Update core_version to v1.9.0

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

app/build.gradle

@@ -130,7 +130,7 @@ dependencies {
     implementation "androidx.constraintlayout:constraintlayout:2.2.0-alpha03"
     implementation "androidx.coordinatorlayout:coordinatorlayout:1.2.0"
 
-    def core_version = "1.9.0-rc01"
+    def core_version = "1.9.0"
     implementation "androidx.core:core:$core_version"
     implementation "androidx.core:core-ktx:$core_version"