Bump Ruby LSP dependency to v0.17.9

Author: andyw8

Gemfile.lock

@@ -232,7 +232,7 @@ GEM
       rubocop (~> 1.51)
     rubocop-sorbet (0.8.3)
       rubocop (>= 0.90.0)
-    ruby-lsp (0.17.7)
+    ruby-lsp (0.17.9)
       language_server-protocol (~> 3.17.0)
       prism (>= 0.29.0, < 0.31)
       rbs (>= 3, < 4)

test/ruby_lsp_rails/hover_test.rb

@@ -237,7 +237,7 @@ class ActiveRecord::Base
       private
 
       def hover_on_source(source, position)
-        with_server(source) do |server, uri|
+        with_server(source, stub_no_typechecker: true) do |server, uri|
           server.process_message(
             id: 1,
             method: "textDocument/hover",