chore(deps-dev): bump @libp2p/interface-mocks from 4.0.3 to 6.0.0

Bumps [@libp2p/interface-mocks](https://github.com/libp2p/js-libp2p-interfaces) from 4.0.3 to 6.0.0.
- [Release notes](https://github.com/libp2p/js-libp2p-interfaces/releases)
- [Commits](https://github.com/libp2p/js-libp2p-interfaces/compare/@libp2p/interface-mocks-v4.0.3...@libp2p/interface-mocks-v6.0.0)

---
updated-dependencies:
- dependency-name: "@libp2p/interface-mocks"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package.json

@@ -148,7 +148,7 @@
     "stream-to-it": "^0.2.2"
   },
   "devDependencies": {
-    "@libp2p/interface-mocks": "^4.0.3",
+    "@libp2p/interface-mocks": "^6.0.0",
     "@libp2p/interface-transport-compliance-tests": "^2.0.6",
     "aegir": "^37.5.3",
     "it-all": "^1.0.6",