Bump actix-web from 4.6.0 to 4.7.0 in /examples (#387)

Bumps [actix-web](https://github.com/actix/actix-web) from 4.6.0 to 4.7.0.
- [Release notes](https://github.com/actix/actix-web/releases)
- [Changelog](https://github.com/actix/actix-web/blob/master/CHANGES.md)
- [Commits](https://github.com/actix/actix-web/compare/web-v4.6.0...web-v4.7.0)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

examples/Cargo.lock

@@ -219,9 +219,9 @@ dependencies = [
 
 [[package]]
 name = "actix-web"
-version = "4.6.0"
+version = "4.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1cf67dadb19d7c95e5a299e2dda24193b89d5d4f33a3b9800888ede9e19aa32"
+checksum = "5d6316df3fa569627c98b12557a8b6ff0674e5be4bb9b5e4ae2550ddb4964ed6"
 dependencies = [
  "actix-codec",
  "actix-http",
@@ -279,9 +279,9 @@ dependencies = [
 
 [[package]]
 name = "actix-web-codegen"
-version = "4.2.2"
+version = "4.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb1f50ebbb30eca122b188319a4398b3f7bb4a8cdf50ecfb73bfc6a3c3ce54f5"
+checksum = "f591380e2e68490b5dfaf1dd1aa0ebe78d84ba7067078512b4ea6e4492d622b8"
 dependencies = [
  "actix-router",
  "proc-macro2",