Adding the mssql extra to development.in for testcontainers coverage
installs pymssql in the dev/test env, so the existing
mssql+pymssql://url probe in test_test_connection_failed no longer
hits the "driver not found" path it was meant to exercise -- it now
attempts a real (failing) connection instead. Swap it for a
dialect+driver URI whose dialect will never resolve to an installed
extra.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>