chore(deps): bump kamal from 2.11.0 to 2.12.0

Bumps [kamal](https://github.com/basecamp/kamal) from 2.11.0 to 2.12.0.
- [Release notes](https://github.com/basecamp/kamal/releases)
- [Commits](basecamp/kamal@v2.11.0...v2.12.0)

---
updated-dependencies:
- dependency-name: kamal
  dependency-version: 2.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -138,7 +138,7 @@ GEM
       xpath (~> 3.2)
     childprocess (5.1.0)
       logger (~> 1.5)
-    concurrent-ruby (1.3.6)
+    concurrent-ruby (1.3.7)
     connection_pool (3.0.2)
     crass (1.0.6)
     csv (3.3.5)
@@ -226,7 +226,7 @@ GEM
       listen
       rails (>= 7.0.0)
       zeitwerk
-    i18n (1.14.8)
+    i18n (1.15.2)
       concurrent-ruby (~> 1.0)
     image_processing (2.0.1)
     importmap-rails (2.2.3)
@@ -246,10 +246,10 @@ GEM
       actionview (>= 7.0.0)
       activesupport (>= 7.0.0)
     jmespath (1.6.2)
-    json (2.19.8)
+    json (2.20.0)
     jwt (2.10.3)
       base64
-    kamal (2.11.0)
+    kamal (2.12.0)
       activesupport (>= 7.0)
       base64 (~> 0.2)
       bcrypt_pbkdf (~> 1.0)