Update dependency rust to v1.7.0 (#57)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.circleci/config.yml

@@ -3,7 +3,7 @@
 version: 2.1
 
 orbs:
-  rust: circleci/rust@1.6.2
+  rust: circleci/rust@1.7.0
 
 workflows:
   production: