Bump activesupport in /driver/riverqueue-activerecord

Bumps [activesupport](https://github.com/rails/rails) from 8.1.2 to 8.1.2.1.
- [Release notes](https://github.com/rails/rails/releases)
- [Changelog](https://github.com/rails/rails/blob/v8.1.2.1/activesupport/CHANGELOG.md)
- [Commits](rails/rails@v8.1.2...v8.1.2.1)

---
updated-dependencies:
- dependency-name: activesupport
  dependency-version: 8.1.2.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

driver/riverqueue-activerecord/Gemfile.lock

@@ -14,13 +14,13 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    activemodel (8.1.2)
-      activesupport (= 8.1.2)
-    activerecord (8.1.2)
-      activemodel (= 8.1.2)
-      activesupport (= 8.1.2)
+    activemodel (8.1.2.1)
+      activesupport (= 8.1.2.1)
+    activerecord (8.1.2.1)
+      activemodel (= 8.1.2.1)
+      activesupport (= 8.1.2.1)
       timeout (>= 0.4.0)
-    activesupport (8.1.2)
+    activesupport (8.1.2.1)
       base64
       bigdecimal
       concurrent-ruby (~> 1.0, >= 1.3.1)
@@ -51,11 +51,12 @@ GEM
     irb (1.14.3)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
-    json (2.9.1)
+    json (2.19.2)
     language_server-protocol (3.17.0.3)
     lint_roller (1.1.0)
     logger (1.7.0)
-    minitest (6.0.1)
+    minitest (6.0.2)
+      drb (~> 2.0)
       prism (~> 1.5)
     parallel (1.26.3)
     parser (3.3.6.0)