Update resources name in HTTP module (#1545)

* set preload_table correctly (fix #1524)

Signed-off-by: Yhz <yinghao.zou@zilliz.com>

* update res name in http module (fix #1544)

Signed-off-by: Yhz <yinghao.zou@zilliz.com>

* add bool convertor function

Signed-off-by: Yhz <yinghao.zou@zilliz.com>

* fix test fail

Signed-off-by: Yhz <yinghao.zou@zilliz.com>

* optimize update config method & add boolean conversion comments

Signed-off-by: Yhz <yinghao.zou@zilliz.com>

* remove comments

Signed-off-by: Yhz <yinghao.zou@zilliz.com>