Stub also select_all

In Rails 7.1 :select no longer depends on :exect_query but relies on :internal_exec_query instead.
So let's stub directly :select_all to fix the tests.

test/unit/solid_cache_test.rb

@@ -57,10 +57,12 @@ def emulating_unavailability
     stub_matcher = ActiveRecord::Base.connection.class.any_instance
     stub_matcher.stubs(:exec_query).raises(ActiveRecord::StatementInvalid)
     stub_matcher.stubs(:exec_delete).raises(ActiveRecord::StatementInvalid)
+    stub_matcher.stubs(:select_all).raises(ActiveRecord::StatementInvalid)
     yield ActiveSupport::Cache::SolidCacheStore.new(namespace: @namespace)
   ensure
     stub_matcher.unstub(:exec_query)
     stub_matcher.unstub(:exec_delete)
+    stub_matcher.unstub(:select_all)
   end
 end
 
@@ -82,10 +84,12 @@ def emulating_unavailability
     stub_matcher = ActiveRecord::Base.connection.class.any_instance
     stub_matcher.stubs(:exec_query).raises(ActiveRecord::StatementInvalid)
     stub_matcher.stubs(:exec_delete).raises(ActiveRecord::StatementInvalid)
+    stub_matcher.stubs(:select_all).raises(ActiveRecord::StatementInvalid)
     yield ActiveSupport::Cache::SolidCacheStore.new(namespace: @namespace,
       error_handler: ->(method:, returning:, exception:) { raise exception })
   ensure
     stub_matcher.unstub(:exec_query)
     stub_matcher.unstub(:exec_delete)
+    stub_matcher.unstub(:select_all)
   end
 end