Fix broken image for runner templates

Changelog: fixed

app/assets/javascripts/vue_shared/components/runner_aws_deployments/runner_aws_deployments_modal.vue

 <script>
 import { GlModal, GlSprintf, GlLink } from '@gitlab/ui';
+import awsCloudFormationImageUrl from 'images/aws-cloud-formation.png';
 import ExperimentTracking from '~/experimentation/experiment_tracking';
 import { getBaseURL, objectToQuery } from '~/lib/utils/url_utility';
 import { __, s__ } from '~/locale';
@@ -22,6 +23,11 @@ export default {
       type: String,
       required: true,
     },
+    imgSrc: {
+      type: String,
+      required: false,
+      default: awsCloudFormationImageUrl,
+    },
   },
   methods: {
     easyButtonUrl(easyButton) {
@@ -76,7 +82,7 @@ export default {
           <img
             :title="easyButton.stackName"
             :alt="easyButton.stackName"
-            src="/assets/aws-cloud-formation.png"
+            :src="imgSrc"
             width="46"
             height="46"
             class="gl-mt-2 gl-mr-5 gl-mb-6"

spec/frontend/vue_shared/components/runner_aws_deployments/runner_aws_deployments_modal_spec.js

@@ -21,6 +21,7 @@ describe('RunnerAwsDeploymentsModal', () => {
     wrapper = shallowMount(RunnerAwsDeploymentsModal, {
       propsData: {
         modalId: 'runner-aws-deployments-modal',
+        imgSrc: '/assets/aws-cloud-formation.png',
       },
     });
   };