fix(tat): [137296521] tencentcloud_tat_command Optimize code logic (#3276)

* add

* add

Author: SevenEarth

.changelog/3276.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/tencentcloud_tat_command: Optimize code logic
+```

tencentcloud/services/tat/resource_tc_tat_command.go

@@ -182,16 +182,17 @@ func resourceTencentCloudTatCommandCreate(d *schema.ResourceData, meta interface
 
 	if v, ok := d.GetOk("tags"); ok {
 		for _, item := range v.([]interface{}) {
-			dMap := item.(map[string]interface{})
-			tag := tat.Tag{}
-			if v, ok := dMap["key"]; ok {
-				tag.Key = helper.String(v.(string))
+			if dMap, ok := item.(map[string]interface{}); ok && dMap != nil {
+				tag := tat.Tag{}
+				if v, ok := dMap["key"]; ok {
+					tag.Key = helper.String(v.(string))
+				}
+				if v, ok := dMap["value"]; ok {
+					tag.Value = helper.String(v.(string))
+				}
+
+				request.Tags = append(request.Tags, &tag)
 			}
-			if v, ok := dMap["value"]; ok {
-				tag.Value = helper.String(v.(string))
-			}
-
-			request.Tags = append(request.Tags, &tag)
 		}
 	}