feat: add FilterConcurrent

docs/api/packages/slice.md

@@ -45,6 +45,7 @@ import (
 -   [Equal](#Equal)
 -   [EqualWith](#EqualWith)
 -   [Filter](#Filter)
+-   [FilterConcurrent](#FilterConcurrent)
 -   [Find<sup>deprecated</sup>](#Find)
 -   [FindBy](#FindBy)
 -   [FindLast<sup>deprecated</sup>](#FindLast)
@@ -901,6 +902,40 @@ func main() {
 }
 ```
 
+### <span id="FilterConcurrent">FilterConcurrent</span>
+
+<p>对slice并发执行filter操作。</p>
+
+<b>函数签名:</b>
+
+```go
+func FilterConcurrent[T any](slice []T, numOfThreads int, predicate func(index int, item T) bool) []T
+```
+
+<b>示例:</b>
+
+```go
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/slice"
+)
+
+func main() {
+    nums := []int{1, 2, 3, 4, 5}
+
+    isEven := func(i, num int) bool {
+        return num%2 == 0
+    }
+
+    result := slice.FilterConcurrent(nums, 2, isEven)
+
+    fmt.Println(result)
+
+    // Output:
+    // [2 4]
+}
+```
+
 ### <span id="Find">Find</span>
 
 <p>遍历slice的元素，返回第一个通过predicate函数真值测试的元素</p>