Bump erb from 6.0.2 to 6.0.4 in /driver/riverqueue-activerecord

Bumps [erb](https://github.com/ruby/erb) from 6.0.2 to 6.0.4.
- [Release notes](https://github.com/ruby/erb/releases)
- [Changelog](https://github.com/ruby/erb/blob/master/NEWS.md)
- [Commits](ruby/erb@v6.0.2...v6.0.4)

---
updated-dependencies:
- dependency-name: erb
  dependency-version: 6.0.4
  dependency-type: indirect
...

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

Author: dependabot[bot]

driver/riverqueue-activerecord/Gemfile.lock

@@ -45,7 +45,7 @@ GEM
     diff-lcs (1.6.2)
     docile (1.4.1)
     drb (2.2.3)
-    erb (6.0.2)
+    erb (6.0.4)
     i18n (1.14.8)
       concurrent-ruby (~> 1.0)
     io-console (0.8.2)