doc: Updated to the v2-9-0-nRF54H20-rc1 tag for a Known issue

Updated to the v2-9-0-nRF54H20-rc1 tag for a Known issue from
v2-9-0-nRF54H20-1

Signed-off-by: divya pillai <[email protected]>

Author: divipillai

doc/nrf/releases_and_maturity/known_issues.rst

@@ -361,7 +361,7 @@ NCSDK-29354: Bluetooth traffic stalls while writing or erasing flash
 
   **Workaround:** Use a separate workqueue for connection TX notify processing (:kconfig:option:`CONFIG_BT_CONN_TX_NOTIFY_WQ`).
 
-.. rst-class:: v2-9-0-nRF54H20-1 v2-9-0 v2-8-0 v2-7-0
+.. rst-class:: v2-9-0-nRF54H20-rc1 v2-9-0 v2-8-0 v2-7-0
 
 NCSDK-30959: The Bluetooth subsystem may deadlock when :kconfig:option:`CONFIG_BT_HCI_ACL_FLOW_CONTROL` is disabled
   When the :kconfig:option:`CONFIG_BT_HCI_ACL_FLOW_CONTROL` Kconfig option is disabled and a user application blocks any of the Bluetooth Host callbacks, the Bluetooth subsystem may deadlock.