build(deps-dev): bump tap from 15.1.5 to 15.1.6

Bumps [tap](https://github.com/tapjs/node-tap) from 15.1.5 to 15.1.6.
- [Release notes](https://github.com/tapjs/node-tap/releases)
- [Commits](https://github.com/tapjs/node-tap/compare/v15.1.5...v15.1.6)

---
updated-dependencies:
- dependency-name: tap
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -37,7 +37,7 @@
     "highlight.js": "^11.0.1",
     "husky": "^4.2.5",
     "marked": "^4.0.0",
-    "tap": "15.1.5"
+    "tap": "15.1.6"
   },
   "scripts": {
     "test": "tap --no-cov",