Bump tailwindcss from 2.1.4 to 3.1.2

Bumps [tailwindcss](https://github.com/tailwindlabs/tailwindcss) from 2.1.4 to 3.1.2.
- [Release notes](https://github.com/tailwindlabs/tailwindcss/releases)
- [Changelog](https://github.com/tailwindlabs/tailwindcss/blob/master/CHANGELOG.md)
- [Commits](tailwindlabs/tailwindcss@v2.1.4...v3.1.2)

---
updated-dependencies:
- dependency-name: tailwindcss
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -48,6 +48,6 @@
     "posthtml-load-config": "2.0.0",
     "stylelint": "14.8.2",
     "stylelint-config-standard": "26.0.0",
-    "tailwindcss": "2.1.4"
+    "tailwindcss": "3.1.2"
   }
 }