Bump capistrano from 3.17.3 to 3.18.1

Bumps [capistrano](https://github.com/capistrano/capistrano) from 3.17.3 to 3.18.1.
- [Release notes](https://github.com/capistrano/capistrano/releases)
- [Commits](https://github.com/capistrano/capistrano/compare/v3.17.3...v3.18.1)

---
updated-dependencies:
- dependency-name: capistrano
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -80,7 +80,7 @@ GEM
       airbrake-ruby (~> 6.0)
     airbrake-ruby (6.2.2)
       rbtree3 (~> 0.6)
-    airbrussh (1.4.2)
+    airbrussh (1.5.1)
       sshkit (>= 1.6.1, != 1.7.0)
     akami (1.3.1)
       gyoku (>= 0.4.0)
@@ -115,7 +115,7 @@ GEM
       uniform_notifier (~> 1.11)
     byebug (11.1.3)
     cancancan (3.5.0)
-    capistrano (3.17.3)
+    capistrano (3.18.1)
       airbrussh (>= 1.0.0)
       i18n
       rake (>= 10.0.0)
@@ -356,6 +356,7 @@ GEM
       chef-utils
     multi_json (1.15.0)
     multi_xml (0.6.0)
+    mutex_m (0.2.0)
     net-http (0.4.1)
       uri
     net-imap (0.4.10)
@@ -367,9 +368,11 @@ GEM
       timeout
     net-scp (4.0.0)
       net-ssh (>= 2.6.5, < 8.0.0)
+    net-sftp (4.0.0)
+      net-ssh (>= 5.0.0, < 8.0.0)
     net-smtp (0.4.0.1)
       net-protocol
-    net-ssh (7.2.0)
+    net-ssh (7.2.1)
     nio4r (2.7.0)
     nokogiri (1.16.3)
       mini_portile2 (~> 2.8.2)
@@ -629,8 +632,10 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    sshkit (1.21.5)
+    sshkit (1.22.0)
+      mutex_m
       net-scp (>= 1.1.2)
+      net-sftp (>= 2.1.2)
       net-ssh (>= 2.8.0)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
@@ -702,7 +707,7 @@ DEPENDENCIES
   bullet (~> 7.1.6)
   byebug (~> 11.1.3)
   cancancan (~> 3.5.0)
-  capistrano (~> 3.17.3)
+  capistrano (~> 3.18.1)
   capistrano-bundler (~> 2.1.0)
   capistrano-npm (~> 1.0.3)
   capistrano-rails (~> 1.6.3)