Exclude any_approver rule from being marked as invalid

Changelog: fixed
EE: true

ee/app/models/approval_wrapped_rule.rb

@@ -91,7 +91,7 @@ def approved?
   end
 
   def invalid_rule?
-    approvals_required > 0 && unactioned_approvers.size <= 0
+    !any_approver? && approvals_required > 0 && unactioned_approvers.size <= 0
   end
 
   def allow_merge_when_invalid?

ee/spec/models/approval_wrapped_rule_spec.rb

@@ -93,6 +93,14 @@
       end
     end
 
+    context 'when rule is any_approver and approvals are required' do
+      let(:rule) { create(:any_approver_rule, merge_request: merge_request, approvals_required: 1) }
+
+      it 'return false' do
+        expect(subject.invalid_rule?).to eq(false)
+      end
+    end
+
     context 'when there are unactioned approvers and approvals are required' do
       let(:approvals_required) { 1 }