Bump actix-web from 4.1.0 to 4.2.1

Bumps [actix-web](https://github.com/actix/actix-web) from 4.1.0 to 4.2.1.
- [Release notes](https://github.com/actix/actix-web/releases)
- [Changelog](https://github.com/actix/actix-web/blob/master/CHANGES.md)
- [Commits](actix/actix-web@web-v4.1.0...web-v4.2.1)

---
updated-dependencies:
- dependency-name: actix-web
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Cargo.lock

@@ -7,7 +7,7 @@ license = "Apache-2.0"
 readme = "README.md"
 
 [dependencies]
-actix-web = "4.1.0"
+actix-web = "4.2.1"
 actix-web-prom = "0.6.0"
 actix-files = "0.6.1"
 clap = "3.0.0-beta.4"