Update solargraph gem to 0.43

Gemfile

@@ -339,7 +339,7 @@ gem 'warning', '~> 1.2.0'
 
 group :development do
   gem 'lefthook', '~> 0.7.0', require: false
-  gem 'solargraph', '~> 0.42', require: false
+  gem 'solargraph', '~> 0.43', require: false
 
   gem 'letter_opener_web', '~> 1.4.0'
 

Gemfile.lock

@@ -1206,7 +1206,7 @@ GEM
     slack-messenger (2.3.4)
     snowplow-tracker (0.6.1)
       contracts (~> 0.7, <= 0.11)
-    solargraph (0.42.3)
+    solargraph (0.43.0)
       backport (~> 1.2)
       benchmark
       bundler (>= 1.17.2)
@@ -1631,7 +1631,7 @@ DEPENDENCIES
   simplecov-cobertura (~> 1.3.1)
   slack-messenger (~> 2.3.4)
   snowplow-tracker (~> 0.6.1)
-  solargraph (~> 0.42)
+  solargraph (~> 0.43)
   spamcheck (~> 0.1.0)
   spring (~> 2.1.0)
   spring-commands-rspec (~> 1.0.4)