Bump tsd from 0.18.0 to 0.19.0 (#50)

Bumps [tsd](https://github.com/SamVerschueren/tsd) from 0.18.0 to 0.19.0.
- [Release notes](https://github.com/SamVerschueren/tsd/releases)
- [Commits](tsdjs/tsd@v0.18.0...v0.19.0)

---
updated-dependencies:
- dependency-name: tsd
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

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

package.json

@@ -52,7 +52,7 @@
     "snazzy": "^9.0.0",
     "standard": "^16.0.3",
     "tap": "^15.0.2",
-    "tsd": "^0.18.0",
+    "tsd": "^0.19.0",
     "typescript": "^4.1.3"
   }
 }