build(deps): bump candid from 0.10.19 to 0.10.20

Bumps [candid](https://github.com/dfinity/candid) from 0.10.19 to 0.10.20.
- [Release notes](https://github.com/dfinity/candid/releases)
- [Changelog](https://github.com/dfinity/candid/blob/master/CHANGELOG.md)
- [Commits](https://github.com/dfinity/candid/commits)

---
updated-dependencies:
- dependency-name: candid
  dependency-version: 0.10.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cargo.lock

@@ -13,7 +13,7 @@ readme = "README.md"
 [workspace.dependencies]
 assert_matches = "1.5.0"
 async-trait = "0.1.88"
-candid = { version = "0.10.13" }
+candid = { version = "0.10.20" }
 ciborium = "0.2.2"
 futures-channel = "0.3.31"
 futures-util = "0.3.31"