Update minSdk to 30.

Also update build.gradle to match.

Test: Build and install with gradle
Flag: NA
Change-Id: I74f2109a13cc662be2d66e472ff010a3acd139f5
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 4f580e0..517bd6d 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -20,7 +20,7 @@
 <manifest
     xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.android.launcher3">
-    <uses-sdk android:targetSdkVersion="33" android:minSdkVersion="26"/>
+    <uses-sdk android:targetSdkVersion="33" android:minSdkVersion="30"/>
     <!--
     Manifest entries specific to Launcher3. This is merged with AndroidManifest-common.xml.
     Refer comments around specific entries on how to extend individual components.