fix: bump csstype from 2.6.9 to 2.6.10 (#421)

Bumps [csstype](https://github.com/frenic/csstype) from 2.6.9 to 2.6.10.
- [Release notes](https://github.com/frenic/csstype/releases)
- [Commits](frenic/csstype@v2.6.9...v2.6.10)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

package.json

@@ -31,7 +31,7 @@
     "classnames": "2.2.6",
     "color": "3.1.2",
     "command-line-interface": "3.6.0",
-    "csstype": "2.6.9",
+    "csstype": "2.6.10",
     "fs-extra": "9.0.0",
     "globby": "11.0.0",
     "jsdom": "16.2.2",