fix(cdk/scrolling): avoid injector errors

Fixes some "Injector is already destroyed" errors.

Author: crisbeto

src/cdk/scrolling/virtual-scroll-viewport.ts

@@ -17,7 +17,6 @@ import {
   ElementRef,
   inject,
   Inject,
-  Injector,
   Input,
   OnDestroy,
   OnInit,
@@ -178,8 +177,6 @@ export class CdkVirtualScrollViewport extends CdkVirtualScrollable implements On
   /** Subscription to changes in the viewport size. */
   private _viewportChanges = Subscription.EMPTY;
 
-  private _injector = inject(Injector);
-
   private _isDestroyed = false;
 
   constructor(...args: unknown[]);
@@ -243,6 +240,9 @@ export class CdkVirtualScrollViewport extends CdkVirtualScrollable implements On
   }
 
   override ngOnDestroy() {
+    this._isDestroyed = true;
+    this._isChangeDetectionPending = false;
+    this._runAfterChangeDetection = [];
     this.detach();
     this._scrollStrategy.detach();
 
@@ -251,8 +251,6 @@ export class CdkVirtualScrollViewport extends CdkVirtualScrollable implements On
     this._detachedSubject.complete();
     this._viewportChanges.unsubscribe();
 
-    this._isDestroyed = true;
-
     super.ngOnDestroy();
   }
 
@@ -526,7 +524,7 @@ export class CdkVirtualScrollViewport extends CdkVirtualScrollable implements On
             fn();
           }
         },
-        {injector: this._injector},
+        {manualCleanup: true},
       );
     });
   }