build(deps-dev): bump st from 2.0.0 to 3.0.0

Bumps [st](https://github.com/isaacs/st) from 2.0.0 to 3.0.0.
- [Release notes](https://github.com/isaacs/st/releases)
- [Commits](isaacs/st@v2.0.0...v3.0.0)

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

Author: dependabot[bot]

package-lock.json

@@ -76,7 +76,7 @@
     "remark-frontmatter": "^3.0.0",
     "remark-gfm": "^1.0.0",
     "remark-preset-lint-node": "^2.2.0",
-    "st": "^2.0.0",
+    "st": "^3.0.0",
     "standard": "^16.0.3",
     "stylelint": "^13.13.1",
     "stylelint-config-twbs-bootstrap": "^2.2.0",