fix(xo-server/rest-api): fix incorrect object's tasks href

Introduced by f3c5e817a

`req.baseUrl` is already handled by `sendObjects`.

CHANGELOG.unreleased.md

@@ -14,6 +14,7 @@
 - [Import/VM] Fix `UUID_INVALID(VM, OpaqueRef:...)` error when importing from URL
 - [Proxies] Fix `xapi.getOrWaitObject is not a function` is not a function during deployment
 - [REST API] Fix empty object's tasks list
+- [REST API] Fix incorrect `href` in `/:collection/:object/tasks`
 
 ### Packages to release
 

packages/xo-server/src/xo-mixins/rest-api.mjs

@@ -626,7 +626,7 @@ export default class RestApi {
           ),
           limit: ifDef(query.limit, Number),
         })
-        await sendObjects(tasks, req, res, req.baseUrl + '/tasks')
+        await sendObjects(tasks, req, res, '/tasks')
       })
     )