Update variant to confirm

Changelog: changed

app/assets/javascripts/ci_variable_list/components/ci_variable_modal.vue

@@ -405,7 +405,7 @@ export default {
       <gl-button
         ref="updateOrAddVariable"
         :disabled="!canSubmit"
-        variant="success"
+        variant="confirm"
         category="primary"
         data-qa-selector="ci_variable_save_button"
         @click="updateOrAddVariable"

spec/frontend/ci_variable_list/components/ci_variable_modal_spec.js

@@ -36,7 +36,7 @@ describe('Ci variable modal', () => {
   const findAddorUpdateButton = () =>
     findModal()
       .findAll(GlButton)
-      .wrappers.find((button) => button.props('variant') === 'success');
+      .wrappers.find((button) => button.props('variant') === 'confirm');
   const deleteVariableButton = () =>
     findModal()
       .findAll(GlButton)