Connectivity: bump min sdk 29(Q) to 30(R)

Mainline push to Q was stopped in February 2023.

Test: TreeHugger
Bug: 283996141
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ic645cce4df5780cdd62eda4e8c596396c2f83b25
diff --git a/common/Android.bp b/common/Android.bp
index 729ef32..ff4de11 100644
--- a/common/Android.bp
+++ b/common/Android.bp
@@ -25,7 +25,7 @@
         "src/com/android/net/module/util/bpf/*.java",
     ],
     sdk_version: "module_current",
-    min_sdk_version: "29",
+    min_sdk_version: "30",
     visibility: [
         // Do not add any lib. This library is only shared inside connectivity module
         // and its tests.