Update Rust crate assert_cmd to v2 (#75)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

Cargo.lock

@@ -24,6 +24,6 @@ tar  = "0.4.38"
 zip = "0.5.13"
 
 [dev-dependencies]
-assert_cmd = "1.0.8"
+assert_cmd = "2.0.4"
 assert_fs = "1.0.7"
 predicates = "2.1.1"