deps(dev): bump aegir from 39.0.13 to 40.0.8

Bumps [aegir](https://github.com/ipfs/aegir) from 39.0.13 to 40.0.8.
- [Release notes](https://github.com/ipfs/aegir/releases)
- [Changelog](https://github.com/ipfs/aegir/blob/master/CHANGELOG.md)
- [Commits](ipfs/aegir@v39.0.13...v40.0.8)

---
updated-dependencies:
- dependency-name: aegir
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -166,6 +166,6 @@
   },
   "devDependencies": {
     "@ipld/garbage": "^6.0.0",
-    "aegir": "^39.0.7"
+    "aegir": "^40.0.8"
   }
 }