refactor(module:pipe): deprecated css-unit pipe (#8027)

Author: HyperLife1119

components/pipes/demo/css-unit.md

@@ -9,6 +9,22 @@ title:
 
 Css 单位
 
+警告：在 `v17.0.0` 中被弃用，请使用 Angular 内置语法替代，例如：
+
+```html
+<div [style.border-radius.px]="1">px</div>
+<div [style.border-radius.%]="1">%</div>
+<div [style.border-radius.rem]="1">rem</div>
+```
+
 ## en-US
 
-Css unit
+Css unit
+
+WARNING: Deprecated in `v17.0.0`, please use angular's built-in syntax instead, eg:
+
+```html
+<div [style.border-radius.px]="1">px</div>
+<div [style.border-radius.%]="1">%</div>
+<div [style.border-radius.rem]="1">rem</div>
+```

components/pipes/nz-css-unit.pipe.ts

@@ -5,6 +5,9 @@
 
 import { Pipe, PipeTransform } from '@angular/core';
 
+/**
+ * @deprecated v17.0.0 - Use angular's built-in syntax instead
+ */
 @Pipe({
   name: 'nzToCssUnit'
 })