Bump turbo-rails from 2.0.20 to 2.0.21

Bumps [turbo-rails](https://github.com/hotwired/turbo-rails) from 2.0.20 to 2.0.21.
- [Release notes](https://github.com/hotwired/turbo-rails/releases)
- [Commits](hotwired/turbo-rails@v2.0.20...v2.0.21)

---
updated-dependencies:
- dependency-name: turbo-rails
  dependency-version: 2.0.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Gemfile.lock

@@ -301,7 +301,7 @@ GEM
     pp (0.6.3)
       prettyprint
     prettyprint (0.2.0)
-    prism (1.7.0)
+    prism (1.8.0)
     propshaft (1.3.1)
       actionpack (>= 7.0.0)
       activesupport (>= 7.0.0)
@@ -362,7 +362,7 @@ GEM
       tsort (>= 0.2)
       zeitwerk (~> 2.6)
     rake (13.3.1)
-    rdoc (7.0.3)
+    rdoc (7.1.0)
       erb
       psych (>= 4.0.0)
       tsort
@@ -432,7 +432,7 @@ GEM
     tilt (2.6.1)
     timeout (0.6.0)
     tsort (0.2.0)
-    turbo-rails (2.0.20)
+    turbo-rails (2.0.21)
       actionpack (>= 7.1.0)
       railties (>= 7.1.0)
     typhoeus (1.4.1)