chore(deps): bump kamal from 2.11.0 to 2.12.0 (#715)

Author: dmitrytrager

Gemfile.lock

@@ -249,7 +249,7 @@ GEM
     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)