Bump is-my-json-valid from 2.15.0 to 2.20.0 in /lib/milligram-1.3.0#3

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dependabot/npm_and_yarn/lib/milligram-1.3.0/is-my-json-valid-2.20.0mi-classroom/webdev-tooling-ugly-code:dependabot/npm_and_yarn/lib/milligram-1.3.0/is-my-json-valid-2.20.0Copy head branch name to clipboard