Suppress Mocha deprecation warning

```
Mocha deprecation warning at /home/runner/work/net-scp/net-scp/lib/net/scp.rb:240:in `download!': Expectation defined at /home/runner/work/net-scp/net-scp/test/test_scp.rb:51:in `test_self_download_should_instatiate_scp_and_invoke_synchronous_download' expected keyword arguments (:password => "foo"), but received positional hash ({:password => "foo"}). These will stop matching when strict keyword argument matching is enabled. See the documentation for Mocha::Configuration#strict_keyword_argument_matching=.
```

Author: mishina2228

test/test_scp.rb

@@ -4,26 +4,26 @@ class TestSCP < Net::SCP::TestCase
   def test_start_without_block_should_return_scp_instance
     ssh = stub('session', :logger => nil)
     Net::SSH.expects(:start).
-      with("remote.host", "username", :password => "foo").
+      with("remote.host", "username", { :password => "foo" }).
       returns(ssh)
 
     ssh.expects(:close).never
-    scp = Net::SCP.start("remote.host", "username", :password => "foo")
+    scp = Net::SCP.start("remote.host", "username", { :password => "foo" })
     assert_instance_of Net::SCP, scp
     assert_equal ssh, scp.session
   end
 
   def test_start_with_block_should_yield_scp_and_close_ssh_session
     ssh = stub('session', :logger => nil)
     Net::SSH.expects(:start).
-      with("remote.host", "username", :password => "foo").
+      with("remote.host", "username", { :password => "foo" }).
       returns(ssh)
 
     ssh.expects(:loop)
     ssh.expects(:close)
 
     yielded = false
-    Net::SCP.start("remote.host", "username", :password => "foo") do |scp|
+    Net::SCP.start("remote.host", "username", { :password => "foo" }) do |scp|
       yielded = true
       assert_instance_of Net::SCP, scp
       assert_equal ssh, scp.session
@@ -34,26 +34,26 @@ def test_start_with_block_should_yield_scp_and_close_ssh_session
 
   def test_self_upload_should_instatiate_scp_and_invoke_synchronous_upload
     scp = stub('scp')
-    scp.expects(:upload!).with("/path/to/local", "/path/to/remote", :recursive => true)
+    scp.expects(:upload!).with("/path/to/local", "/path/to/remote", { :recursive => true })
 
     Net::SCP.expects(:start).
-      with("remote.host", "username", :password => "foo").
+      with("remote.host", "username", { :password => "foo" }).
       yields(scp)
 
     Net::SCP.upload!("remote.host", "username", "/path/to/local", "/path/to/remote",
-      :ssh => { :password => "foo" }, :recursive => true)
+      { :ssh => { :password => "foo" }, :recursive => true })
   end
 
   def test_self_download_should_instatiate_scp_and_invoke_synchronous_download
     scp = stub('scp')
-    scp.expects(:download!).with("/path/to/remote", "/path/to/local", :recursive => true).returns(:result)
+    scp.expects(:download!).with("/path/to/remote", "/path/to/local", { :recursive => true }).returns(:result)
 
     Net::SCP.expects(:start).
-      with("remote.host", "username", :password => "foo").
+      with("remote.host", "username", { :password => "foo" }).
       yields(scp)
 
     result = Net::SCP.download!("remote.host", "username", "/path/to/remote", "/path/to/local",
-      :ssh => { :password => "foo" }, :recursive => true)
+      { :ssh => { :password => "foo" }, :recursive => true })
 
     assert_equal :result, result
   end