Revert "Increase validation timeout in gitlab_schema.rb"

This reverts commit 7b4eca5d.

app/graphql/gitlab_schema.rb

@@ -32,7 +32,7 @@ class GitlabSchema < GraphQL::Schema
   default_max_page_size 100
 
   validate_max_errors 5
-  validate_timeout 0.5.seconds
+  validate_timeout 0.2.seconds
 
   lazy_resolve ::Gitlab::Graphql::Lazy, :force
 

spec/graphql/gitlab_schema_spec.rb

@@ -33,7 +33,7 @@
   end
 
   it 'sets an appropriate validation timeout' do
-    expect(described_class.validate_timeout).to be <= 0.5.seconds
+    expect(described_class.validate_timeout).to be <= 0.2.seconds
   end
 
   describe '.execute' do

spec/support/helpers/graphql_helpers.rb

@@ -461,6 +461,7 @@ def all_graphql_fields_for(class_name, max_depth: 3, excluded: [])
 
     allow_unlimited_graphql_complexity
     allow_unlimited_graphql_depth if max_depth > 1
+    allow_unlimited_validation_timeout
     allow_high_graphql_recursion
     allow_high_graphql_transaction_threshold
     allow_high_graphql_query_size
@@ -727,6 +728,11 @@ def allow_unlimited_graphql_depth
     allow(GitlabSchema).to receive(:max_query_depth).with(any_args).and_return nil
   end
 
+  def allow_unlimited_validation_timeout
+    allow_any_instance_of(GitlabSchema).to receive(:validate_timeout).and_return nil
+    allow(GitlabSchema).to receive(:validate_timeout).with(any_args).and_return nil
+  end
+
   def allow_high_graphql_recursion
     allow_any_instance_of(Gitlab::Graphql::QueryAnalyzers::AST::RecursionAnalyzer).to receive(:recursion_threshold).and_return 1000
   end