niv motoko-base: update 5f700d08 -> 430ab584 (#4081)

## Changelog for motoko-base:
Branch: next-moc
Commits: [dfinity/motoko-base@5f700d08...430ab584](dfinity/motoko-base@5f700d0...430ab58)

* [`0400a68d`](dfinity/motoko-base@0400a68) feat: more array utility functions ([dfinity/motoko-base⁠#564](https://togithub.com/dfinity/motoko-base/issues/564))

nix/sources.json

@@ -64,10 +64,10 @@
         "homepage": null,
         "owner": "dfinity",
         "repo": "motoko-base",
-        "rev": "5f700d087aa3d2d036861df87146aede4c096eb4",
-        "sha256": "0f4hsa1dl1j20cni7c1w8z4a8kfkisaafrsbf9xsrh4h4p33l6n7",
+        "rev": "430ab5849839376540bd090e4dd22aab9ae241a6",
+        "sha256": "13f4j6srgi4vdkir9b5q0isl9wd87m9gc5lrfnyrkfzyj8qv0wid",
         "type": "tarball",
-        "url": "https://github.com/dfinity/motoko-base/archive/5f700d087aa3d2d036861df87146aede4c096eb4.tar.gz",
+        "url": "https://github.com/dfinity/motoko-base/archive/430ab5849839376540bd090e4dd22aab9ae241a6.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "motoko-matchers": {