Bump tough-cookie from 2.5.0 to 5.1.0

Bumps [tough-cookie](https://github.com/salesforce/tough-cookie) from 2.5.0 to 5.1.0.
- [Release notes](https://github.com/salesforce/tough-cookie/releases)
- [Changelog](https://github.com/salesforce/tough-cookie/blob/master/CHANGELOG.md)
- [Commits](salesforce/tough-cookie@v2.5.0...v5.1.0)

---
updated-dependencies:
- dependency-name: tough-cookie
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -22,7 +22,7 @@
     "tilelive-fieldpapers": "0.1.2",
     "@mapbox/tilelive-mapnik": "1.0.0",
     "tilelive-raster": "0.5.0",
-    "tough-cookie": "2.5.0"
+    "tough-cookie": "5.1.0"
   },
   "engines": {
     "node": "8.17.0"