Merge pull request #2399 from ruby/dependabot/bundler/steep/csv-3.3.4

Bump csv from 3.3.3 to 3.3.4 in /steep

Author: soutaro

steep/Gemfile.lock

@@ -20,7 +20,7 @@ GEM
     bigdecimal (3.1.9)
     concurrent-ruby (1.3.5)
     connection_pool (2.5.0)
-    csv (3.3.3)
+    csv (3.3.4)
     drb (2.2.1)
     ffi (1.17.1)
     fileutils (1.7.3)