deps: bump ethers from 6.15.0 to 6.16.0 (#653)

Bumps [ethers](https://github.com/ethers-io/ethers.js) from 6.15.0 to 6.16.0.
- [Release notes](https://github.com/ethers-io/ethers.js/releases)
- [Changelog](https://github.com/ethers-io/ethers.js/blob/main/CHANGELOG.md)
- [Commits](ethers-io/ethers.js@v6.15.0...v6.16.0)

---
updated-dependencies:
- dependency-name: ethers
  dependency-version: 6.16.0
  dependency-type: direct:production
  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>

Author: dependabot[bot]

package-lock.json

@@ -33,7 +33,7 @@
         "@web3-storage/w3up-client": "^16.5.2",
         "debug": "^4.4.3",
         "drand-client": "^1.4.2",
-        "ethers": "^6.15.0",
+        "ethers": "^6.16.0",
         "ipfs-unixfs-exporter": "^13.7.3",
         "just-percentile": "^4.2.0",
         "k-closest": "^1.3.0",