deps(py): update psycopg requirement from >=3.3.3 to >=3.3.4 in /backend

[dependabot]

Updates the requirements on psycopg to permit the latest version.

Changelog

Sourced from psycopg's changelog.

.. currentmodule:: psycopg

.. index:: single: Release notes single: News

psycopg release notes

Current release

Psycopg 3.3.4 ^^^^^^^^^^^^^

• Fix possible spurious connection timeout in systems with very long uptimes in C extension (:ticket:[#1280](https://github.com/psycopg/psycopg/issues/1280)).
• Fix client-side adaptation of enums whose name require quotes (:ticket:[#1298](https://github.com/psycopg/psycopg/issues/1298)).
• Consistently populate ~Cursor.statusmessage after ~Cursor.executemany() (:ticket:[#1302](https://github.com/psycopg/psycopg/issues/1302)).

Psycopg 3.3.3 ^^^^^^^^^^^^^

• Retain Error.pgconn when raising a single exception for multiple connection attempt errors (:ticket:[#1246](https://github.com/psycopg/psycopg/issues/1246)).
• Return a proper error when server sends ErrorResponse for a Sync after a Parse (:ticket:[#1260](https://github.com/psycopg/psycopg/issues/1260)).

Psycopg 3.3.2 ^^^^^^^^^^^^^

Fix race condition in adapters at startup (:ticket:[#1230](https://github.com/psycopg/psycopg/issues/1230)).

Psycopg 3.3.1 ^^^^^^^^^^^^^

Fix iteration on server-side cursors (:ticket:[#1226](https://github.com/psycopg/psycopg/issues/1226)).

Psycopg 3.3.0

.. rubric:: New top-level features

• Add :ref:template strings queries \<template-strings> (:ticket:[#1054](https://github.com/psycopg/psycopg/issues/1054)).

... (truncated)

Commits

• 83f1103 chore: bump psycopg_pool package version to 3.3.1
• 1828770 chore: bump psycopg package version to 3.3.4
• 8be14bb Merge pull request #1301 from oliverhaas/fix/sync-pool-open-race
• aee0bf2 fix(pool): fix race in the construction of the sync ConnectionPool lock
• bc4d303 chore(deps): bump the actions group across 1 directory with 4 updates
• 785379f fix: retain statusmessage after executemany with returning=False
• 8882a73 perf: do less if X in Y: return Y[X] for cache-like patterns
• 2f78539 Merge pull request #1299 from dvarrazzo/fix-camel-enum
• 37ef1dc test: skip test on crdb depending on precise regtype behaviour
• 7f2f1d1 fix: fix client-side representation of enums requiring quotes
• Additional commits viewable in compare view

[github-actions]

Review Council Results

4 tests   2 ✅  0s ⏱️
1 suites  0 💤
1 files    2 ❌

For more details on these failures, see this check.

Results for commit a2a4102.

♻️ This comment has been updated with latest results.

[Blb3D]

Dependabot sweep — automated triage

Bucket: A (patch bump, same major — would normally auto-merge)

Package	From	To	Type
psycopg[binary]	>=3.3.3	>=3.3.4	patch

Diff is bumps-only ✅ — two files updated (requirements.txt, requirements.win-postgres.txt), no manifest entries added or removed. The 3.3.4 changelog fixes: spurious connection timeout in C extension, client-side enum adaptation with quoted names, and executemany() statusmessage consistency — all bug fixes, no breaking changes.

Blocked — not merged. The Review Council check is failing (conclusion: failure). Hard rule: all visible CI checks must be SUCCESS before merging, including non-required checks. Required checks (backend, check-pro-code) are green ✅.

Action for human: Once Review Council is resolved/dismissed, this is safe to merge.

---

Generated by Claude Code

[Blb3D]

Approving — psycopg constraint floor bump from >=3.3.3 to >=3.3.4, two files (requirements.txt + requirements.win-postgres.txt), bumps-only diff. Auto-rebased onto post-#591 main; the only effective change is the psycopg floor.

3.3.4 release notes: spurious connection timeout fix in C extension, client-side enum adaptation with quoted names, executemany() statusmessage consistency. All bug fixes, no breaking changes.

CI status:

• Backend Unit & Integration Tests: SUCCESS
• FilaOps CI (backend, frontend): SUCCESS
• CodeQL (Python + JavaScript): SUCCESS
• PRO Code Guard: SUCCESS
• GitGuardian: SUCCESS
• Review Council (dedicated workflow): SUCCESS

Review Council JUnit-published FAILURE — confirmed false positive: annotations cite src/config.js:42 and src/db/queries.js:87 which do not exist anywhere in FilaOps (no such files in frontend/src/, backend/app/, or anywhere else). These are generic placeholder paths from the external review-council tool's template fallback. The actual stored Guardian findings in .code-conclave/reviews/guardian-findings.json are from a 2026-02-15 scan and target real FilaOps files (settings.py SECRET_KEY validator, customer_service.py wildcard search) — those are real concerns worth triaging separately, but they predate this PR by 3 months and are unrelated to a psycopg floor bump.