docs: fix InputNumber api table

close #5251

components/input-number/index.en-US.md

@@ -19,7 +19,7 @@ When a numeric value needs to be provided.
 | value     | current value       | number      |            |
 | step     | The number to which the current value is increased or decreased. It can be an integer or decimal.  | number\|string      |  1      |
 | defaultValue     | initial value       | number      |            |
-| onChange     | The callback triggered when the value is changed.     | function(value: number | string) |            |
+| onChange     | The callback triggered when the value is changed.     | function(value: number \| string) |            |
 | disabled     | disable the input       | boolean      |      false      |
 | size    | width of input box  | string      | - |
-| formatter | Specifies the format of the value presented | function(value: number | string): string | - |
+| formatter | Specifies the format of the value presented | function(value: number \| string): string | - |

components/input-number/index.zh-CN.md

@@ -22,7 +22,7 @@ title: InputNumber
 | value     | 当前值       | number      |            |
 | step     | 每次改变步数，可以为小数  | number\|string      |  1      |
 | defaultValue     | 初始值       | number      |            |
-| onChange     | 变化回调       | Function(value: number | string) |            |
+| onChange     | 变化回调       | Function(value: number \| string) |            |
 | disabled     | 禁用       | boolean      |      false      |
 | size    | 输入框大小  | string      |      无      |
-| formatter | 指定输入框展示值的格式 | function(value: number | string): string | - |
+| formatter | 指定输入框展示值的格式 | function(value: number \| string): string | - |