[Snyk] Upgrade source-map from 0.5.7 to 0.7.3#4

snyk-bot wants to merge 1 commit intomasterajesse11x/OnlinePythonTutor:masterfrom

snyk-upgrade-03c6aadfec2e3654756bf7fdcfe3c6eaajesse11x/OnlinePythonTutor:snyk-upgrade-03c6aadfec2e3654756bf7fdcfe3c6eaCopy head branch name to clipboard