Signed-off-by: Julius Härtl <jus@bitgrid.net>

Updates the requirements on [pixelmatch](https://github.com/mapbox/pixelmatch) to permit the latest version.
- [Release notes](https://github.com/mapbox/pixelmatch/releases)
- [Commits](https://github.com/mapbox/pixelmatch/compare/v4.0.2...v5.0.2

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Updates the requirements on [polyserve](https://github.com/Polymer/tools) to permit the latest version.
- [Release notes](https://github.com/Polymer/tools/releases)
- [Commits](https://github.com/Polymer/tools/commits/polyserve@0.27.13

)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Signed-off-by: Julius Härtl <jus@bitgrid.net>

Signed-off-by: Julius Härtl <jus@bitgrid.net>

Reincrement network idle to 3 s

Signed-off-by: Julius Härtl <jus@bitgrid.net>

Signed-off-by: Julius Härtl <jus@bitgrid.net>

Signed-off-by: Julius Härtl <jus@bitgrid.net>

Signed-off-by: Julius Härtl <jus@bitgrid.net>