chore(row-pinning): Attemp for fixing test in azure

Author: dkamburov

projects/igniteui-angular/src/lib/grids/grid/row-pinning.spec.ts

@@ -304,7 +304,7 @@ describe('Row Pinning #grid', () => {
             expect(grid.getRowByIndex(0).rowID).toBe(fix.componentInstance.data[1]);
         });
 
-        it('should pin rows when columns are grouped.', () => {
+        it('should pin rows when columns are grouped.', async () => {
             grid.height = '650px';
             fix.detectChanges();
             // pin 1st and 2nd data row
@@ -336,6 +336,9 @@ describe('Row Pinning #grid', () => {
             grid.pinRow(fix.componentInstance.data[3]);
             fix.detectChanges();
 
+            await wait(DEBOUNCE_TIME);
+            fix.detectChanges();
+
             expect(grid.pinnedRows.length).toBe(3);
 
             // make sure the pinned rows is in the unpinned area as disabled row