pgsql: Sort DO_DEFAULT_ACL dump objects independent of OIDs.

Sort DO_DEFAULT_ACL dump objects independent of OIDs.

Commit 0decd5e89db9f5edb9b27351082f0d74aae7a9b6 missed DO_DEFAULT_ACL,
leading to assertion failures, potential dump order instability, and
spurious schema diffs.  Back-patch to v13, like that commit.

Reported-by: Alexander Lakhin <exclusion@gmail.com>
Author: Kirill Reshke <reshkekirill@gmail.com>
Discussion: https://postgr.es/m/d32aaa8d-df7c-4f94-bcb3-4c85f02bea21@gmail.com
Backpatch-through: 13

Branch
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REL_15_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/fbf967e996ddb6ce32983479236339ac3c7e1ce6

Modified Files
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src/bin/pg_dump/pg_dump_sort.c           | 13 +++++++++++++
src/test/regress/expected/privileges.out |  5 +++++
src/test/regress/sql/privileges.sql      |  7 +++++++
3 files changed, 25 insertions(+)