fix(material/expansion): fix lint issue (#25469)

(cherry picked from commit 6dd4b3c)

Author: andrewseguin

src/material/expansion/expansion.spec.ts

@@ -61,8 +61,9 @@ describe('MatExpansionPanel', () => {
 
   it('should be able to render panel content lazily', fakeAsync(() => {
     const fixture = TestBed.createComponent(LazyPanelWithContent);
-    const content = fixture.debugElement.query(By.css('.mat-expansion-panel-content'))!
-      .nativeElement;
+    const content = fixture.debugElement.query(
+      By.css('.mat-expansion-panel-content'),
+    )!.nativeElement;
     fixture.detectChanges();
 
     expect(content.textContent.trim())
@@ -79,8 +80,9 @@ describe('MatExpansionPanel', () => {
 
   it('should render the content for a lazy-loaded panel that is opened on init', fakeAsync(() => {
     const fixture = TestBed.createComponent(LazyPanelOpenOnLoad);
-    const content = fixture.debugElement.query(By.css('.mat-expansion-panel-content'))!
-      .nativeElement;
+    const content = fixture.debugElement.query(
+      By.css('.mat-expansion-panel-content'),
+    )!.nativeElement;
     fixture.detectChanges();
 
     expect(content.textContent.trim())