Switch to source-built GSON.

Bug: 243950468
Test: local build, presubmit, check that aosp_raven boots.
Change-Id: I0bd4b2b89444b4ef1da80e5643ad707c1346b54a
diff --git a/framework/Android.bp b/framework/Android.bp
index e288a93..8453b6d 100644
--- a/framework/Android.bp
+++ b/framework/Android.bp
@@ -67,7 +67,7 @@
         "androidx.annotation_annotation",
         "androidx.core_core",
         "androidx.legacy_legacy-support-v4",
-        "gson-prebuilt-jar",
+        "gson",
         "guava",
         "hilt_android",
         "mockito-target-extended-minus-junit4",