optimize plugin sdk (#1930)

plugins/wasm-go/extensions/ai-cache/embedding/provider.go

@@ -3,6 +3,7 @@ package embedding
 import (
 	"errors"
 
+	"github.com/alibaba/higress/plugins/wasm-go/pkg/log"
 	"github.com/alibaba/higress/plugins/wasm-go/pkg/wrapper"
 	"github.com/tidwall/gjson"
 )
@@ -108,6 +109,6 @@ type Provider interface {
 	GetEmbedding(
 		queryString string,
 		ctx wrapper.HttpContext,
-		log wrapper.Log,
+		log log.Log,
 		callback func(emb []float64, err error)) error
 }