chore: bump unist-util-remove from 2.1.0 to 3.1.0 (#2001)

Bumps [unist-util-remove](https://github.com/syntax-tree/unist-util-remove) from 2.1.0 to 3.1.0.
- [Release notes](https://github.com/syntax-tree/unist-util-remove/releases)
- [Commits](syntax-tree/unist-util-remove@2.1.0...3.1.0)

---
updated-dependencies:
- dependency-name: unist-util-remove
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -47,7 +47,7 @@
     "simple-statistics": "^7.0.2",
     "ts-node": "^10.0.0",
     "typescript": "^4.0.5",
-    "unist-util-remove": "^2.1.0",
+    "unist-util-remove": "^3.1.0",
     "unist-util-visit": "^2.0.1",
     "walk-sync": "^3.0.0"
   },