Bump webrick from 1.7.0 to 1.8.2 in /benchmarks/railsbench (#385)

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-version: 1.8.2
  dependency-type: direct:production
...

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

Author: dependabot[bot]

benchmarks/railsbench/Gemfile

@@ -24,7 +24,7 @@ gem 'sqlite3', platform: :ruby
 gem 'activerecord-jdbcsqlite3-adapter', '~> 70', platform: :jruby
 # Use webrick for the web server since it's easy to install.
 # The web server is not used during the benchmark.
-gem 'webrick', '~> 1.7.0'
+gem 'webrick', '~> 1.8.2'
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
 # Needed in the benchmark for json responses
 gem 'jbuilder', '~> 2.7'

benchmarks/railsbench/Gemfile.lock

@@ -172,7 +172,7 @@ GEM
       concurrent-ruby (~> 1.0)
     uri (1.0.3)
     useragent (0.16.11)
-    webrick (1.7.0)
+    webrick (1.8.2)
     zeitwerk (2.7.3)
 
 PLATFORMS
@@ -205,7 +205,7 @@ DEPENDENCIES
   sqlite3
   stackprof
   tzinfo-data
-  webrick (~> 1.7.0)
+  webrick (~> 1.8.2)
 
 BUNDLED WITH
    2.8.0.dev