Bump json5, @microsoft/sp-build-web and @microsoft/sp-webpart-workbench#6

dependabot[bot] wants to merge 1 commit intomasterspblog/spfx-avoid-css-leakage:masterfrom

dependabot/npm_and_yarn/json5-and-microsoft/sp-build-web-and-microsoft/sp-webpart-workbench-2.2.3spblog/spfx-avoid-css-leakage:dependabot/npm_and_yarn/json5-and-microsoft/sp-build-web-and-microsoft/sp-webpart-workbench-2.2.3Copy head branch name to clipboard