chore(deps): update dependency postgresql-18-pg-ivm

[renovate]

This PR contains the following updates:

Package	Update	Change
postgresql-18-pg-ivm	minor	1.13 → 1.15
postgresql-18-pg-ivm	minor	1.13-1.pgdg12+1 → 1.15-1.pgdg12+1
postgresql-18-pg-ivm	minor	1.13-1.pgdg13+1 → 1.15-1.pgdg13+1

---

Release Notes

sraoss/pg_ivm (postgresql-18-pg-ivm)

v1.15: pg_ivm 1.15 (2026-06-30)

What's Changed

New features

• Add IMMV metadata restore support for pg_dump and pg_upgrade by @​yugo-n in #​169

  After restoring a database from pg_dump or upgrading PostgreSQL using pg_upgrade, IMMVs no longer need to be dropped and recreated manually. The new pg_ivm_dump_metadata utility and restore_immv() function restore the metadata required by pg_ivm, allowing incremental maintenance to continue without recreating the IMMVs.

Bug fixes

• Fix incorrect maintenance when the same table is modified multiple times by triggers by @​yugo-n in #​162

  Previously, if a table was modified multiple times by user-defined or RI triggers, incremental maintenance could produce inconsistent results or lead to duplicate key violations.

• Fix segfault during outer-join views maintenance by @​yugo-n in #​167

  This bug was introduced in v1.14.

Full Changelog: sraoss/pg_ivm@v1.14...v1.15

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

👻 Immortal: This PR will be recreated if closed unmerged. Get config help if that's undesired.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[shusaan]

LGTM