deps(dev): bump it-drain from 2.0.1 to 3.0.2 (#331)

Bumps [it-drain](https://github.com/achingbrain/it) from 2.0.1 to 3.0.2.
- [Release notes](https://github.com/achingbrain/it/releases)
- [Commits](achingbrain/it@it-drain-v2.0.1...it-drain-v3.0.2)

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

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

Author: dependabot[bot]

packages/ipfs-unixfs-importer/package.json

@@ -180,7 +180,7 @@
     "aegir": "^38.1.2",
     "blockstore-core": "^4.0.1",
     "it-buffer-stream": "^3.0.0",
-    "it-drain": "^2.0.0",
+    "it-drain": "^3.0.2",
     "it-last": "^3.0.2",
     "wherearewe": "^2.0.1"
   },