Bump assert_cmd from 2.0.7 to 2.0.8

Bumps [assert_cmd](https://github.com/assert-rs/assert_cmd) from 2.0.7 to 2.0.8.
- [Release notes](https://github.com/assert-rs/assert_cmd/releases)
- [Changelog](https://github.com/assert-rs/assert_cmd/blob/master/CHANGELOG.md)
- [Commits](https://github.com/assert-rs/assert_cmd/compare/v2.0.7...v2.0.8)

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

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

Cargo.lock

@@ -34,9 +34,9 @@ checksum = "8da52d66c7071e2e3fa2a1e5c6d088fec47b593032b254f5e980de8ea54454d6"
 
 [[package]]
 name = "assert_cmd"
-version = "2.0.7"
+version = "2.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa3d466004a8b4cb1bc34044240a2fd29d17607e2e3bd613eb44fd48e8100da3"
+checksum = "9834fcc22e0874394a010230586367d4a3e9f11b560f469262678547e1d2575e"
 dependencies = [
  "bstr 1.1.0",
  "doc-comment",