chore(deps): bump es6-promisify from 6.1.1 to 7.0.0 (#974)

Bumps [es6-promisify](https://github.com/mikehall314/es6-promisify) from 6.1.1 to 7.0.0.
- [Release notes](https://github.com/mikehall314/es6-promisify/releases)
- [Commits](https://github.com/mikehall314/es6-promisify/compare/v6.1.1...v7.0.0)

---
updated-dependencies:
- dependency-name: es6-promisify
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -88,7 +88,7 @@
     "class-is": "^1.1.0",
     "debug": "^4.3.1",
     "err-code": "^3.0.0",
-    "es6-promisify": "^6.1.1",
+    "es6-promisify": "^7.0.0",
     "events": "^3.3.0",
     "hashlru": "^2.3.0",
     "interface-datastore": "^5.1.1",