chore(deps): update dependency rust to v1.6.1 (#441)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [rust](https://circleci.com/developer/orbs/orb/circleci/rust) | orb |
patch | `1.6.0` -> `1.6.1` |

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.circleci/config.yml

@@ -2,7 +2,7 @@ version: 2.1
 
 # Our CircleCI dependencies
 orbs:
-  rust: circleci/[email protected].0
+  rust: circleci/[email protected].1
   gh: circleci/[email protected]
   secops: apollo/[email protected]