Try to get flaky result

.github/workflows/build_and_test.yml

@@ -486,7 +486,7 @@ jobs:
       image: ${{ needs.params.outputs.fail_test_image_name }}:${{ fromJson(needs.params.outputs.pg16_version).full }}${{ needs.params.outputs.image_suffix }}
       options: --user root
     env:
-      runs: 8
+      runs: 20
     needs:
     - params
     - build

src/test/regress/expected/pg14.out

@@ -1492,4 +1492,5 @@ DROP TABLE compression_and_defaults, compression_and_generated_col;
 set client_min_messages to error;
 drop extension postgres_fdw cascade;
 drop schema pg14 cascade;
+DROP ROLE role_1, r1;
 reset client_min_messages;

src/test/regress/sql/pg14.sql

@@ -777,4 +777,5 @@ DROP TABLE compression_and_defaults, compression_and_generated_col;
 set client_min_messages to error;
 drop extension postgres_fdw cascade;
 drop schema pg14 cascade;
+DROP ROLE role_1, r1;
 reset client_min_messages;