chore: import upstream snapshot with attribution

testing/go/regression/tests/init_privs.sql

@@ -0,0 +1,10 @@
+-- Test initial privileges
+
+-- There should always be some initial privileges, set up by initdb
+SELECT count(*) > 0 FROM pg_init_privs;
+
+-- Intentionally include some non-initial privs for pg_dump to dump out
+GRANT SELECT ON pg_proc TO CURRENT_USER;
+GRANT SELECT (prosrc) ON pg_proc TO CURRENT_USER;
+
+GRANT SELECT (rolname, rolsuper) ON pg_authid TO CURRENT_USER;