chore(tox): remove psycopg2 from requirements

This package is already in the test image.
6 jobs for !29 with topic/default/new-pg11-image in 2 minutes and 22 seconds (queued for 2 seconds)
merge request
Name Stage Failure
failed
py3 Tests
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py3-deprecated-warnings.json: found 1 matching files and directories

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id=475262 responseStatus=201 Created token=xMyJ-3wJ
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report.xml: found 1 matching files and directories

Uploading artifacts as "junit" to coordinator... ok
id=475262 responseStatus=201 Created token=xMyJ-3wJ
Cleaning up file based variables
ERROR: Job failed: command terminated with exit code 1