pools: Add a pool for buffers

pkg/pools/pools.go

@@ -1,6 +1,8 @@
+// Package pools holds various pools for reuse
 package pools
 
 import (
+	"bytes"
 	"strings"
 	"sync"
 )
@@ -17,3 +19,16 @@ func ReleaseBuilder(builder *strings.Builder) {
 	builder.Reset()
 	builders.Put(builder)
 }
+
+var buffers = sync.Pool{
+	New: func() any { return new(bytes.Buffer) },
+}
+
+func GetBuffer() *bytes.Buffer {
+	return buffers.Get().(*bytes.Buffer)
+}
+
+func ReleaseBuffer(buffer *bytes.Buffer) {
+	buffer.Reset()
+	buffers.Put(buffer)
+}