Bump ethers from 5.6.8 to 6.9.1

Bumps [ethers](https://github.com/ethers-io/ethers.js) from 5.6.8 to 6.9.1.
- [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@v5.6.8...v6.9.1)

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

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -16,7 +16,7 @@
     "date-fns": "^2.30.0",
     "del": "^6.0.0",
     "dotenv": "^16.0.3",
-    "ethers": "^5.6.8",
+    "ethers": "^6.9.1",
     "framer-motion": "^6.5.1",
     "gatsby": "^3.14.6",
     "gatsby-image": "^3.11.0",