Bump xterm from 3.15.0-beta67 to 3.15.0-beta68 in /terminus-terminal

Merge pull request #1185 from Eugeny/dependabot/npm_and_yarn/terminus-terminal/xterm-addon-webgl-0.2.0-beta3

Bump xterm-addon-webgl from 0.2.0-beta1 to 0.2.0-beta3 in /terminus-terminal

Bump app-builder-lib from 21.0.7 to 21.0.8

Bumps [app-builder-lib](https://github.com/electron-userland/electron-builder) from 21.0.7 to 21.0.8.
- [Release notes](https://github.com/electron-userland/electron-builder/releases)
- [Changelog](https://github.com/electron-userland/electron-builder/blob/master/CHANGELOG.md)
- [Commits](https://github.com/electron-userland/electron-builder/commits/v21.0.8)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>

Bumps xterm-addon-webgl from 0.2.0-beta1 to 0.2.0-beta3.
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>

Bumps [xterm](https://github.com/xtermjs/xterm.js) from 3.15.0-beta67 to 3.15.0-beta68.
- [Release notes](https://github.com/xtermjs/xterm.js/releases)
- [Commits](https://github.com/xtermjs/xterm.js/commits)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>

Bump app-builder-lib from 21.0.6 to 21.0.7

Bump @types/node from 12.0.10 to 12.0.12

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 12.0.10 to 12.0.12.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>

Bump node-gyp from 5.0.0 to 5.0.2

Bump xterm from 3.15.0-beta65 to 3.15.0-beta67 in /terminus-terminal

Bump xterm-addon-search from 0.2.0-beta1 to 0.2.0-beta2 in /terminus-terminal

Bumps [xterm](https://github.com/xtermjs/xterm.js) from 3.15.0-beta65 to 3.15.0-beta67.
- [Release notes](https://github.com/xtermjs/xterm.js/releases)
- [Commits](https://github.com/xtermjs/xterm.js/commits)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>

Bumps xterm-addon-search from 0.2.0-beta1 to 0.2.0-beta2.
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>

Bumps [app-builder-lib](https://github.com/electron-userland/electron-builder) from 21.0.6 to 21.0.7.
- [Release notes](https://github.com/electron-userland/electron-builder/releases)
- [Changelog](https://github.com/electron-userland/electron-builder/blob/master/CHANGELOG.md)
- [Commits](https://github.com/electron-userland/electron-builder/commits)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>

Bumps [node-gyp](https://github.com/nodejs/node-gyp) from 5.0.0 to 5.0.2.
- [Release notes](https://github.com/nodejs/node-gyp/releases)
- [Changelog](https://github.com/nodejs/node-gyp/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nodejs/node-gyp/compare/v5.0.0...v5.0.2)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>

Bump xterm-addon-search from 0.1.0-beta6 to 0.2.0-beta1 in /terminus-terminal

Bump app-builder-lib from 21.0.5 to 21.0.6

Bumps [app-builder-lib](https://github.com/electron-userland/electron-builder) from 21.0.5 to 21.0.6.
- [Release notes](https://github.com/electron-userland/electron-builder/releases)
- [Changelog](https://github.com/electron-userland/electron-builder/blob/master/CHANGELOG.md)
- [Commits](https://github.com/electron-userland/electron-builder/compare/v21.0.5...v21.0.6)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>

Bumps xterm-addon-search from 0.1.0-beta6 to 0.2.0-beta1.
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>