build(deps): bump cryptography from 42.0.2 to 42.0.4 in .kokoro (#623)

Source-Link: https://github.com/googleapis/synthtool/commit/d895aec3679ad22aa120481f746bf9f2f325f26f
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-python:latest@sha256:98f3afd11308259de6e828e37376d18867fd321aba07826e29e4f8d9cab56bad

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
2 files changed