chore(deps): bump cross-fetch from 3.1.8 to 4.0.0

Bumps [cross-fetch](https://github.com/lquixada/cross-fetch) from 3.1.8 to 4.0.0.
- [Release notes](https://github.com/lquixada/cross-fetch/releases)
- [Changelog](https://github.com/lquixada/cross-fetch/blob/v4.x/CHANGELOG.md)
- [Commits](lquixada/cross-fetch@v3.1.8...v4.0.0)

---
updated-dependencies:
- dependency-name: cross-fetch
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -60,7 +60,7 @@
     "bitcoin-core": "^3.0.0",
     "bitcoinjs-lib": "^5.2.0",
     "bn.js": "4.12.0",
-    "cross-fetch": "^3.0.6",
+    "cross-fetch": "^4.0.0",
     "isomorphic-fetch": "^3.0.0",
     "regtest-client": "^0.2.0"
   },