Bump rdoc from 6.10.0 to 6.11.0 in /builder (#2587)

Bumps [rdoc](https://github.com/ruby/rdoc) from 6.10.0 to 6.11.0.
- [Release notes](https://github.com/ruby/rdoc/releases)
- [Changelog](https://github.com/ruby/rdoc/blob/master/History.rdoc)
- [Commits](ruby/rdoc@v6.10.0...v6.11.0)

---
updated-dependencies:
- dependency-name: rdoc
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

builder/Gemfile.lock

@@ -231,7 +231,7 @@ GEM
       thor (~> 1.0, >= 1.2.2)
       zeitwerk (~> 2.6)
     rake (13.2.1)
-    rdoc (6.10.0)
+    rdoc (6.11.0)
       psych (>= 4.0.0)
     redcarpet (3.6.0)
     redis-client (0.23.2)