Bump psycopg from 3.2.12 to 3.3.4 in /backend

[dependabot]

Bumps psycopg from 3.2.12 to 3.3.4.

Changelog

Sourced from psycopg's changelog.

.. currentmodule:: psycopg

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

psycopg release notes

Future releases

Psycopg 3.3.5 (unreleased) ^^^^^^^^^^^^^^^^^^^^^^^^^^

• Discard prepared statements upon :sql:ALTER * or DISCARD * (:ticket:[#1307](https://github.com/psycopg/psycopg/issues/1307)).
• Fix !ProgrammingError when dumping non-!None values with no !NoneType dumper registered in python implementation (:ticket:[#1325](https://github.com/psycopg/psycopg/issues/1325)).
• Fix !wait_selector wait function to not raise !KeyError (:ticket:[#1327](https://github.com/psycopg/psycopg/issues/1327)).
• Fix !DataError messages leaking the literal {...} placeholder instead of the offending value when loading a pre-year-1 :sql:timestamp or a malformed binary :sql:jsonb value (:ticket:[#1372](https://github.com/psycopg/psycopg/issues/1372)).

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

... (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

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[marcoacierno]

@claude update lock file

[claude]

Claude encountered an error after 10m 48s —— View job

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Updating the lock file

• Gather context (pyproject.toml bump + current uv.lock)
• Run uv lock with the pinned uv 0.12.5 → psycopg/psycopg-c 3.2.12 → 3.3.4
• Verify uv sync --locked passes (the graphql-schema job uses it)
• Run backend tests / mypy against psycopg 3.3.4
• Commit & push to this PR branch

[marcoacierno]

@claude update lock file, commit and push without running tests or verification

[claude]

Claude encountered an error after 3m 20s —— View job

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I'll analyze this and get back to you.

[marcoacierno]

@claude update lock file, commit and push without running tests or verification

[claude]

Claude finished @marcoacierno's task in 2m 39s —— View job

---

Lock file updated and pushed

• Gather context (backend/pyproject.toml pins psycopg[c]==3.3.4)
• Run uv lock in backend/ (uv 0.12.5, same version as backend/Dockerfile)
• Commit & push backend/uv.lock → b56613b

Resolved 237 packages in 921ms
Updated psycopg v3.2.12 -> v3.3.4
Updated psycopg-c v3.2.12 -> v3.3.4
Updated torch v2.12.1+cpu -> v2.12.1, v2.12.1+cpu

As requested, no tests, lint, mypy or uv sync --locked were run — CI will be the first thing to exercise this lock file.

Heads-up on the diff size

The commit is 1264 insertions / 1251 deletions, which is much bigger than a single-package bump. Two reasons, both side effects of re-locking rather than anything about psycopg:

1. Lock format upgrade. The committed lock was still at the pre-revision format. uv 0.12.5 rewrites it as version = 1 + revision = 3, which adds an upload-time = ... field to every sdist/wheel entry and simplifies the top-level resolution-markers. That accounts for nearly all of the churn — no package versions change.
2. torch marker split. torch now has two entries instead of one: 2.12.1 (sys_platform == 'darwin', macOS arm64 wheels) and 2.12.1+cpu (everything else, same wheels/hashes as before). Linux/Docker/CI still resolves to 2.12.1+cpu, so the deployed artifact is unchanged; it just also locks macOS wheels now.

The only real dependency change is psycopg/psycopg-c 3.2.12 → 3.3.4:

-    { name = "psycopg", extras = ["c"], specifier = "==3.2.12" },
+    { name = "psycopg", extras = ["c"], specifier = "==3.3.4" },

Note that psycopg-c is an sdist-only build, so uv sync will compile it against libpq — worth watching the backend CI/Docker build for that.
• dependabot/pip/backend/psycopg-3.3.4