Bump psycopg3 version && add timeouts on blocking functions

[jmeunier28]

What does this PR do?

Updates psycopg3 to the latest released version, which contains nice fixes like this one:

Fix connect() to avoid “leaking” an open PGconn attached to the OperationalError in case of connection failure. Error.pgconn is now a shallow copy of the real libpq connection, and the latter is closed before the exception propagates (ticket #565).

Also, adds a timeout parameter on blocking functions like WaitGroup.wait() and close_all_connections. On master we have seen the tests timeout, and it could be due to us blocking forever when we can't close the connection, which happens every time we call check.cancel().

Motivation

Additional Notes

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• PR title must be written as a CHANGELOG entry (see why)
• Files changes must correspond to the primary purpose of the PR as described in the title (small unrelated changes should have their own PR)
• PR must have changelog/ and integration/ labels attached
• If the PR doesn't need to be tested during QA, please add a qa/skip-qa label.

[edengorevoy]

looks good to me, the threading.Event, Conditions + Timer setup is cool ⚡

[github-actions]

Test Results

     12 files       12 suites   14m 41s ⏱️
   223 tests    221 ✔️   2 💤 0 ❌
1 344 runs  1 296 ✔️ 48 💤 0 ❌

Results for commit b2e9308.

♻️ This comment has been updated with latest results.

[codecov]

Codecov Report

Merging #15492 (b2e9308) into master (8bb548d) will decrease coverage by 0.01%.
The diff coverage is 82.60%.

Flag	Coverage Δ
postgres	91.69% <82.60%> (-0.12%)	⬇️

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