Bump karma from 6.0.1 to 6.0.3

Bumps [karma](https://github.com/karma-runner/karma) from 6.0.1 to 6.0.3.
- [Release notes](https://github.com/karma-runner/karma/releases)
- [Changelog](https://github.com/karma-runner/karma/blob/master/CHANGELOG.md)
- [Commits](https://github.com/karma-runner/karma/compare/v6.0.1...v6.0.3)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

yarn.lock

@@ -4993,9 +4993,9 @@ karma-sinon@^1.0.5:
   integrity sha1-TjRD8oMP3s/2JNN0cWPxIX2qKpo=
 
 karma@^6.0.1:
-  version "6.0.1"
-  resolved "https://registry.yarnpkg.com/karma/-/karma-6.0.1.tgz#5252e548de7d7e8dc1ab8721d33bd5c21cb6b8ea"
-  integrity sha512-LHE8Ywfeji6Sk3jt072j7gUAYZrpw7tCzvQWpgJqwCC9inW4eA3g1yl6srTtC0xiOvZDqXIzx8tgBPm0qhfYkg==
+  version "6.0.3"
+  resolved "https://registry.yarnpkg.com/karma/-/karma-6.0.3.tgz#a35b4371306e08e3f8e46b5753aff46eaf3eec2c"
+  integrity sha512-dmiLQdsNAvnbV1G6VvUK7Cl5xpwiMisZNT8MjBtOo49jKlnZSWLxQIemuLT8sGSzvx5IGgMfMQEtf/CALiUEVQ==
   dependencies:
     body-parser "^1.19.0"
     braces "^3.0.2"