feat(material/tabs): Update API goldens again

Author: zelliott

tools/public_api_guard/material/tabs-testing.md

@@ -37,6 +37,7 @@ export class MatTabHarness extends ContentContainerComponentHarness<string> {
 // @public
 export class MatTabLinkHarness extends ComponentHarness {
     click(): Promise<void>;
+    getAriaControls(): Promise<string | null>;
     getLabel(): Promise<string>;
     static hostSelector: string;
     isActive(): Promise<boolean>;
@@ -49,6 +50,7 @@ export class MatTabNavBarHarness extends ComponentHarness {
     clickLink(filter?: TabLinkHarnessFilters): Promise<void>;
     getActiveLink(): Promise<MatTabLinkHarness>;
     getLinks(filter?: TabLinkHarnessFilters): Promise<MatTabLinkHarness[]>;
+    getPanel(): Promise<MatTabNavPanelHarness>;
     static hostSelector: string;
     static with(options?: TabNavBarHarnessFilters): HarnessPredicate<MatTabNavBarHarness>;
 }
@@ -72,6 +74,10 @@ export interface TabLinkHarnessFilters extends BaseHarnessFilters {
 export interface TabNavBarHarnessFilters extends BaseHarnessFilters {
 }
 
+// @public
+export interface TabNavPanelHarnessFilters extends BaseHarnessFilters {
+}
+
 // (No @packageDocumentation comment for this package)
 
 ```