fix: perform autoreg waiting when performing standard autoreg

The initial delay when performing the standard autoregistration used to
be done directly in rhsmcertd (the C daemon). When the anonymous
autoregistration was implemented, since it has to start immediately,
that delay in rhsmcertd was dropped in favour of doing it "inline"
during the autoregistration. The waiting was added only during the
anonymous autoregistration flow and not during the standard
autoregistration.

Hence, add the autoregistration wait/delay before performing the
standard autoregistration, restoring the previous behaviour.

(cherry picked from commit 0d27a59)

src/subscription_manager/scripts/rhsmcertd_worker.py

@@ -262,6 +262,8 @@ def _auto_register_standard(uep: "UEPConnection", token: Dict[str, str]) -> None
     """
     log.debug("Registering the system through standard automatic registration.")
 
+    _auto_register_wait()
+
     service = RegisterService(cp=uep)
     service.register(org=None, jwt_token=token["token"])