niv candid: update c2419ac6 -> 067025a8

## Changelog for candid:
Branch: master
Commits: [dfinity/candid@c2419ac6...067025a8](dfinity/candid@c2419ac...067025a)

* [`7758917b`](dfinity/candid@7758917) chore: elide needless lifetimes for rust 1.83.0 update to stable ([dfinity/candid⁠#587](https://togithub.com/dfinity/candid/issues/587))
* [`5ee6538e`](dfinity/candid@5ee6538) feat: IDLBuilder.try_reserve_value_serializer_capacity ([dfinity/candid⁠#586](https://togithub.com/dfinity/candid/issues/586))
* [`067025a8`](dfinity/candid@067025a) chore: release candid 0.10.11 ([dfinity/candid⁠#588](https://togithub.com/dfinity/candid/issues/588))

nix/sources.json

@@ -6,10 +6,10 @@
         "homepage": "",
         "owner": "dfinity",
         "repo": "candid",
-        "rev": "c2419ac6b7dfba4dd5e53f964b99bbdebc0308e2",
-        "sha256": "1pf0yb8f876n6d14j55x5dwkywnx1fxbznrnz28545bm8nxjc6k0",
+        "rev": "067025a8c55c2b843fce40f6ba38ffe6dd543b84",
+        "sha256": "047j585rlfilcczrslvyanycp4qqfnzy31crxgcz8sazz7jbk1za",
         "type": "tarball",
-        "url": "https://github.com/dfinity/candid/archive/c2419ac6b7dfba4dd5e53f964b99bbdebc0308e2.tar.gz",
+        "url": "https://github.com/dfinity/candid/archive/067025a8c55c2b843fce40f6ba38ffe6dd543b84.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "esm": {