Add min_sdk_version to SdkExtension tests am: ffb7125d11 am: d5fd60f46f

Original change: https://android-review.googlesource.com/c/platform/packages/modules/SdkExtensions/+/1622433

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: If12746aa5edd62da4a4c26fde1ec724484dfde53
diff --git a/manifest.json b/manifest.json
index 92194e9..deeb29e 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,4 +1,4 @@
 {
   "name": "com.android.sdkext",
-  "version": 300900700
+  "version": 300000000
 }