Update libs.versions.toml restored minSdk to 21.

Author: JonEckenrode

gradle/libs.versions.toml

@@ -49,7 +49,7 @@ material3-adaptive = "1.1.0"
 material3-adaptive-navigation-suite = "1.3.1"
 media3 = "1.5.1"
 # @keep
-minSdk = "24"
+minSdk = "21"
 playServicesWearable = "19.0.0"
 protolayout = "1.2.1"
 recyclerview = "1.4.0"