Bump webrick in /docs in the bundler group across 1 directory

Bumps the bundler group with 1 update in the /docs directory: [webrick](https://github.com/ruby/webrick).


Updates `webrick` from 1.8.1 to 1.8.2
- [Release notes](https://github.com/ruby/webrick/releases)
- [Commits](ruby/webrick@v1.8.1...v1.8.2)

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

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

docs/Gemfile.lock

@@ -80,7 +80,7 @@ GEM
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
     unicode-display_width (2.5.0)
-    webrick (1.8.1)
+    webrick (1.8.2)
 
 PLATFORMS
   arm64-darwin