Consolidate open packaging dependency updates

[ibrahim halatci (ihalatci)]

Summary

• update Black from 26.3.1 to 26.5.1
• update cryptography from 48.0.1 to 50.0.0
• update GitPython from 3.1.50 to 3.1.58
• update psycopg2-binary from 2.9.9 to 2.9.12
• update pycurl from 7.45.3 to 7.47.0
• update pytest from 9.0.3 to 9.1.1
• cover every currently open Dependabot version-update PR with one consistent Python 3.10 lockfile

Local validation

• regenerated lock exactly matches pip-compile under Python 3.10
• installed package set passes dependency compatibility checks
• Black formatting check passes
• Prospector reports zero findings
• 21 targeted packaging tests pass
• GitPython branch and commit access passes in a native WSL repository

CI exercises the repository's remaining Git- and Docker-backed workflows.