[Snyk] Security upgrade webpack-dev-server from 3.11.3 to 4.9.0#24

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

snyk-fix-9b562366c027c5c9c8a38fabecb4d86dsimplewebrtc/simplewebrtc-demo-app:snyk-fix-9b562366c027c5c9c8a38fabecb4d86dCopy head branch name to clipboard