Update AndroidX Core to 1.5.0-beta03 (google#268)

* Update AndroidX Core to 1.5.0-rc01

* Update dependencies.kt

Author: chrisbanes

buildSrc/src/main/java/com/google/accompanist/buildsrc/dependencies.kt

@@ -96,7 +96,7 @@ object Libs {
 
         const val lifecycleKtx = "androidx.lifecycle:lifecycle-runtime-ktx:2.3.0"
 
-        const val core1_5_0 = "androidx.core:core:1.5.0-beta02"
+        const val core1_5_0 = "androidx.core:core:1.5.0-beta03"
 
         object Activity {
             const val activityCompose = "androidx.activity:activity-compose:1.3.0-alpha04"