refactor(@schematics/angular): maybe import vi when tranforming flush or tick

Author: yjaaidi

packages/schematics/angular/refactor/jasmine-vitest/transformers/fake-async-flush.ts

@@ -25,6 +25,7 @@ export function transformFakeAsyncFlush(node: ts.Node, ctx: RefactorContext): ts
       `Transformed \`flush\` to \`await vi.runAllTimersAsync()\`.`,
     );
 
+    ctx.pendingVitestValueImports.add('vi');
     addImportSpecifierRemoval(ctx, 'flush', ANGULAR_CORE_TESTING);
 
     if (node.arguments.length > 0) {

packages/schematics/angular/refactor/jasmine-vitest/transformers/fake-async-tick.ts

@@ -24,6 +24,7 @@ export function transformFakeAsyncTick(node: ts.Node, ctx: RefactorContext): ts.
       `Transformed \`tick\` to \`await vi.advanceTimersByTimeAsync()\`.`,
     );
 
+    ctx.pendingVitestValueImports.add('vi');
     addImportSpecifierRemoval(ctx, 'tick', ANGULAR_CORE_TESTING);
 
     const durationNumericLiteral =