mobly-snippet-lib: Allow snippet install on R devices

Bug: 284416663
Test: atest GtsWifiDirectTestCases on R devices
Change-Id: Ia7df616d0aff82e68fd185b9691959a7832c844b
diff --git a/Android.bp b/Android.bp
index 436cd74..7ffced2 100644
--- a/Android.bp
+++ b/Android.bp
@@ -26,5 +26,5 @@
     ],
     manifest: "third_party/sl4a/src/main/AndroidManifest.xml",
     sdk_version: "current",
-    min_sdk_version: "31",
+    min_sdk_version: "30",
 }