Compile robolectric third party shadows against android U.

This is a precursor change to supporting android U.

For #8404

PiperOrigin-RevId: 571416264
diff --git a/buildSrc/src/main/groovy/AndroidSdk.groovy b/buildSrc/src/main/groovy/AndroidSdk.groovy
index 2d8fb1c..29e5cf6 100644
--- a/buildSrc/src/main/groovy/AndroidSdk.groovy
+++ b/buildSrc/src/main/groovy/AndroidSdk.groovy
@@ -15,12 +15,12 @@
     static final S = new AndroidSdk(31, "12", "7732740");
     static final S_V2 = new AndroidSdk(32, "12.1", "8229987");
     static final TIRAMISU = new AndroidSdk(33, "13", "9030017");
-
+    static final U = new AndroidSdk(34, "14", "10818077");
 
     static final List<AndroidSdk> ALL_SDKS = [
             KITKAT,
             LOLLIPOP, LOLLIPOP_MR1, M, N, N_MR1, O, O_MR1, P, Q, R, S, S_V2,
-            TIRAMISU
+            TIRAMISU, U
     ]
 
     static final MAX_SDK = Collections.max(ALL_SDKS)