[Snyk] Security upgrade webpack-dev-server from 3.11.3 to 4.0.0#20

one000mph wants to merge 1 commit intomastersimplewebrtc/simplewebrtc-demo-app:masterfrom

snyk-fix-98fd3d07190241319692ad79c91f8f46simplewebrtc/simplewebrtc-demo-app:snyk-fix-98fd3d07190241319692ad79c91f8f46Copy head branch name to clipboard