Update Compose to v1.6.8

Author: renovate[bot]

gradle/libs.versions.toml

@@ -10,7 +10,7 @@ androidx-core-ktx = "1.13.1"
 androidx-espresso-core = "3.5.1"
 androidx-material = "1.12.0"
 androidx-test-junit = "1.1.5"
-compose = "1.6.7"
+compose = "1.6.8"
 compose-plugin = "1.6.11"
 junit = "4.13.2"
 kotlin = "1.9.24"