build: upgrade dependency and build with go 1.21

vendor/go.uber.org/zap/buffer/pool.go

@@ -20,25 +20,29 @@
 
 package buffer
 
-import "sync"
+import (
+	"go.uber.org/zap/internal/pool"
+)
 
 // A Pool is a type-safe wrapper around a sync.Pool.
 type Pool struct {
-	p *sync.Pool
+	p *pool.Pool[*Buffer]
 }
 
 // NewPool constructs a new Pool.
 func NewPool() Pool {
-	return Pool{p: &sync.Pool{
-		New: func() interface{} {
-			return &Buffer{bs: make([]byte, 0, _size)}
-		},
-	}}
+	return Pool{
+		p: pool.New(func() *Buffer {
+			return &Buffer{
+				bs: make([]byte, 0, _size),
+			}
+		}),
+	}
 }
 
 // Get retrieves a Buffer from the pool, creating one if necessary.
 func (p Pool) Get() *Buffer {
-	buf := p.p.Get().(*Buffer)
+	buf := p.p.Get()
 	buf.Reset()
 	buf.pool = p
 	return buf