Update xr to v1.0.0-alpha08

Author: renovate[bot]

gradle/libs.versions.toml

@@ -26,7 +26,7 @@ okhttp = "5.3.0"
 paparazzi = "1.3.5"
 retrofit = "3.0.0"
 room = "2.8.3"
-xr = "1.0.0-alpha07"
+xr = "1.0.0-alpha08"
 xr-material = "1.0.0-alpha11"
 
 [libraries]