Specify min_sdk_version so it can be used with APEX.

Bug: 262758740
Test: builds
Change-Id: Ie76742179a74fb4e79e4ab9b9480cf315c238376
Merged-In: Ie76742179a74fb4e79e4ab9b9480cf315c238376
diff --git a/api/Android.bp b/api/Android.bp
index 537d969..79e52e1 100644
--- a/api/Android.bp
+++ b/api/Android.bp
@@ -39,4 +39,5 @@
         "jsr305",
     ],
     sdk_version: "current",
+    min_sdk_version: "33",
 }
diff --git a/contrib/grpc_metrics/Android.bp b/contrib/grpc_metrics/Android.bp
index 8770bd6..21c246d 100644
--- a/contrib/grpc_metrics/Android.bp
+++ b/contrib/grpc_metrics/Android.bp
@@ -34,4 +34,5 @@
         "guava",
     ],
     sdk_version: "current",
+    min_sdk_version: "33",
 }