Fix broken specs

spec/frontend/vue_shared/components/filtered_search_bar/tokens/author_token_spec.js

@@ -45,6 +45,7 @@ function createComponent(options = {}) {
     provide: {
       portalName: 'fake target',
       alignSuggestions: function fakeAlignSuggestions() {},
+      suggestionsListClass: 'custom-class',
     },
     stubs,
   });

spec/frontend/vue_shared/components/filtered_search_bar/tokens/branch_token_spec.js

@@ -45,6 +45,7 @@ function createComponent(options = {}) {
     provide: {
       portalName: 'fake target',
       alignSuggestions: function fakeAlignSuggestions() {},
+      suggestionsListClass: 'custom-class',
     },
     stubs,
   });

spec/frontend/vue_shared/components/filtered_search_bar/tokens/label_token_spec.js

@@ -50,6 +50,7 @@ function createComponent(options = {}) {
     provide: {
       portalName: 'fake target',
       alignSuggestions: function fakeAlignSuggestions() {},
+      suggestionsListClass: 'custom-class',
     },
     stubs,
   });

spec/frontend/vue_shared/components/filtered_search_bar/tokens/milestone_token_spec.js

@@ -48,6 +48,7 @@ function createComponent(options = {}) {
     provide: {
       portalName: 'fake target',
       alignSuggestions: function fakeAlignSuggestions() {},
+      suggestionsListClass: 'custom-class',
     },
     stubs,
   });