Bump kamal from 1.8.3 to 2.0.0

Bumps [kamal](https://github.com/basecamp/kamal) from 1.8.3 to 2.0.0.
- [Release notes](https://github.com/basecamp/kamal/releases)
- [Commits](basecamp/kamal@v1.8.3...v2.0.0)

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

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

Gemfile.lock

@@ -189,10 +189,10 @@ GEM
       irb (~> 1.10)
       reline (>= 0.3.8)
     debug_inspector (1.2.0)
-    dotenv (2.8.1)
-    dotenv-rails (2.8.1)
-      dotenv (= 2.8.1)
-      railties (>= 3.2)
+    dotenv (3.1.4)
+    dotenv-rails (3.1.4)
+      dotenv (= 3.1.4)
+      railties (>= 6.1)
     drb (2.2.1)
     ed25519 (1.3.0)
     erubi (1.13.0)
@@ -249,16 +249,16 @@ GEM
       activesupport (>= 5.0.0)
     jmespath (1.6.2)
     json (2.7.2)
-    kamal (1.8.3)
+    kamal (2.0.0)
       activesupport (>= 7.0)
       base64 (~> 0.2)
       bcrypt_pbkdf (~> 1.0)
       concurrent-ruby (~> 1.2)
-      dotenv (~> 2.8)
+      dotenv (~> 3.1)
       ed25519 (~> 1.2)
       net-ssh (~> 7.0)
       sshkit (>= 1.23.0, < 2.0)
-      thor (~> 1.2)
+      thor (~> 1.3)
       zeitwerk (~> 2.5)
     language_server-protocol (3.17.0.3)
     launchy (3.0.1)