Bump webrick from 1.7.0 to 1.8.2 in /src/chef-server-ctl

Bumps [webrick](https://github.com/ruby/webrick) from 1.7.0 to 1.8.2.
- [Release notes](https://github.com/ruby/webrick/releases)
- [Commits](ruby/webrick@v1.7.0...v1.8.2)

---
updated-dependencies:
- dependency-name: webrick
  dependency-type: indirect
...

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

src/chef-server-ctl/Gemfile.lock

@@ -399,7 +399,7 @@ GEM
     veil (0.3.11)
       bcrypt (~> 3.1)
       pbkdf2
-    webrick (1.7.0)
+    webrick (1.8.2)
     winrm (2.3.6)
       builder (>= 2.1.2)
       erubi (~> 1.8)