[Snyk] Security upgrade @bazel/karma from 0.21.0 to 0.23.0#40

Open

snyk-bot wants to merge 1 commit intomasterfrom

snyk-fix-dd0d76a0348f7976d66977d83346ae74

Commits on Aug 18, 2020

fix: tools/npm/package.json & tools/npm/yarn.lock to reduce vulnerabilities
snyk-bot
committed