Merge branch 'update-net-ssh' into 'master'

Update net-ssh 4.1.0 -> 4.2.0 (Fixes #21734)

Closes #21734

See merge request gitlab-org/gitlab-ce!17688

Gemfile

@@ -401,7 +401,7 @@ gem 'vmstat', '~> 2.3.0'
 gem 'sys-filesystem', '~> 1.1.6'
 
 # SSH host key support
-gem 'net-ssh', '~> 4.1.0'
+gem 'net-ssh', '~> 4.2.0'
 gem 'sshkey', '~> 1.9.0'
 
 # Required for ED25519 SSH host key support

Gemfile.lock

@@ -512,7 +512,7 @@ GEM
       mustermann (~> 1.0.0)
     mysql2 (0.4.10)
     net-ldap (0.16.0)
-    net-ssh (4.1.0)
+    net-ssh (4.2.0)
     netrc (0.11.0)
     nokogiri (1.8.2)
       mini_portile2 (~> 2.3.0)
@@ -1106,7 +1106,7 @@ DEPENDENCIES
   mousetrap-rails (~> 1.4.6)
   mysql2 (~> 0.4.10)
   net-ldap
-  net-ssh (~> 4.1.0)
+  net-ssh (~> 4.2.0)
   nokogiri (~> 1.8.2)
   oauth2 (~> 1.4)
   octokit (~> 4.8)