[Snyk] Upgrade react-router-dom from 5.2.0 to 5.3.4#39

tworimpa wants to merge 1 commit intomastertworimpa/vscode-webview-react:masterfrom

snyk-upgrade-b2e5b1ea1ff08b0993d5dff0bd48ed8atworimpa/vscode-webview-react:snyk-upgrade-b2e5b1ea1ff08b0993d5dff0bd48ed8aCopy head branch name to clipboard