Increase vuln modal size

* Set size prop to lg

ee/app/assets/javascripts/vue_shared/security_reports/components/modal.vue

@@ -196,6 +196,7 @@ export default {
     ref="modal"
     :modal-id="$options.VULNERABILITY_MODAL_ID"
     :title="modal.title"
+    size="lg"
     data-qa-selector="vulnerability_modal_content"
     class="modal-security-report-dast"
     v-bind="$attrs"

ee/spec/frontend/vue_shared/security_reports/components/modal_spec.js

@@ -27,6 +27,13 @@ describe('Security Reports modal', () => {
     modal = wrapper.find(GlModal);
   };
 
+  describe('modal', () => {
+    it('renders a large modal', () => {
+      mountComponent({ modal: createState().modal }, mount);
+      expect(modal.props('size')).toBe('lg');
+    });
+  });
+
   describe('with permissions', () => {
     describe('with dismissed issue', () => {
       beforeEach(() => {