docs: Update apps/emqx_authz/i18n/emqx_authz_schema_i18n.conf

Co-authored-by: JianBo He <heeejianbo@163.com>

apps/emqx_authz/i18n/emqx_authz_schema_i18n.conf

@@ -99,7 +99,7 @@ If the file provisioned before starting EMQX node,
 it can be placed anywhere as long as EMQX has read access to it.
 That is, EMQX will treat it as readonly.
 
-In case the rule-set is created or updated from EMQX Dashboard or management API,
+In case the rule-set is created or updated from EMQX Dashboard or HTTP API,
 a new file will be created and placed in `authz` subdirectory inside EMQX's `data_dir`,
 and the old file will not be used anymore.
 """