Fix compiler submodule to checkout v20230206 again

lauraharker · lauraharker · commit b84c914d346b · 2023-02-10T11:56:00.000-08:00
(I tried to push an 'empty' commit previously but accidentally
changed the compiler submodule)
diff --git a/compiler b/compiler
@@ -1 +1 @@
-Subproject commit 31cb36c5a5557c54180b7fdbdab09a1cb85c1f2d
+Subproject commit 787b913b6ca90164a5647a1d50c856e7cf238eef
