niv candid: update f7166f47 -> 9301221a (#3998)

## Changelog for candid:
Branch: master
Commits: [dfinity/candid@f7166f47...9301221a](dfinity/candid@f7166f4...9301221)

* [`51c00478`](dfinity/candid@51c0047) spec: support composite query ([dfinity/candid⁠#420](https://togithub.com/dfinity/candid/issues/420))
* [`74869398`](dfinity/candid@7486939) fix recursion test ([dfinity/candid⁠#425](https://togithub.com/dfinity/candid/issues/425))
* [`eb31f888`](dfinity/candid@eb31f88) Use Arc<Type> with `arc_type` feature ([dfinity/candid⁠#407](https://togithub.com/dfinity/candid/issues/407))
* [`b9d6cbff`](dfinity/candid@b9d6cbf) support custom candid path for export_service ([dfinity/candid⁠#421](https://togithub.com/dfinity/candid/issues/421))
* [`fa29c70d`](dfinity/candid@fa29c70) Add config options for Rust binding ([dfinity/candid⁠#422](https://togithub.com/dfinity/candid/issues/422))
* [`f31396d8`](dfinity/candid@f31396d) Bump webpack from 5.24.4 to 5.76.0 in /tools/ui ([dfinity/candid⁠#413](https://togithub.com/dfinity/candid/issues/413))
* [`9301221a`](dfinity/candid@9301221) release ([dfinity/candid⁠#430](https://togithub.com/dfinity/candid/issues/430))

nix/sources.json

@@ -6,10 +6,10 @@
         "homepage": "",
         "owner": "dfinity",
         "repo": "candid",
-        "rev": "f7166f47d895e411a74de1eba4b347ac75f5fd26",
-        "sha256": "151nn11hn5h3bnj4h5wx37b5ggda7mdk0lclx03bc88imv1mh6zl",
+        "rev": "9301221a118e89710fc41791951f797394d4def0",
+        "sha256": "0x2mk5gxpikd3xkh2qigk1sm5gz5fwn1j3acksa3jv0na7aal0v2",
         "type": "tarball",
-        "url": "https://github.com/dfinity/candid/archive/f7166f47d895e411a74de1eba4b347ac75f5fd26.tar.gz",
+        "url": "https://github.com/dfinity/candid/archive/9301221a118e89710fc41791951f797394d4def0.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "esm": {