deps: bump it-map from 2.0.1 to 3.0.3 (#329)

Bumps [it-map](https://github.com/achingbrain/it) from 2.0.1 to 3.0.3.
- [Release notes](https://github.com/achingbrain/it/releases)
- [Commits](achingbrain/it@it-map-v2.0.1...it-map-v3.0.3)

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

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

Author: dependabot[bot]

packages/ipfs-unixfs-exporter/package.json

@@ -144,7 +144,7 @@
     "ipfs-unixfs": "^11.0.0",
     "it-filter": "^2.0.0",
     "it-last": "^3.0.2",
-    "it-map": "^2.0.0",
+    "it-map": "^3.0.3",
     "it-parallel": "^3.0.0",
     "it-pipe": "^3.0.1",
     "it-pushable": "^3.1.0",