build(deps-dev): bump pytest from 8.4.1 to 8.4.2 in /backend (#1227)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]