Fix zwave_js firmware update logic (#101143)

* Fix zwave_js firmware update logic

* add comment

* tweak implementation for ssame outcome

homeassistant/components/zwave_js/update.py

@@ -211,11 +211,15 @@ class ZWaveNodeFirmwareUpdate(UpdateEntity):
                 return
 
         try:
-            available_firmware_updates = (
-                await self.driver.controller.async_get_available_firmware_updates(
-                    self.node, API_KEY_FIRMWARE_UPDATE_SERVICE
+            # Retrieve all firmware updates including non-stable ones but filter
+            # non-stable channels out
+            available_firmware_updates = [
+                update
+                for update in await self.driver.controller.async_get_available_firmware_updates(
+                    self.node, API_KEY_FIRMWARE_UPDATE_SERVICE, True
                 )
-            )
+                if update.channel == "stable"
+            ]
         except FailedZWaveCommand as err:
             LOGGER.debug(
                 "Failed to get firmware updates for node %s: %s",

tests/components/zwave_js/test_update.py

@@ -87,6 +87,24 @@ FIRMWARE_UPDATES = {
                 "rfRegion": 1,
             },
         },
+        # This firmware update should never show because it's in the beta channel
+        {
+            "version": "999.999.999",
+            "changelog": "blah 3",
+            "channel": "beta",
+            "files": [
+                {"target": 0, "url": "https://example3.com", "integrity": "sha3"}
+            ],
+            "downgrade": True,
+            "normalizedVersion": "999.999.999",
+            "device": {
+                "manufacturerId": 1,
+                "productType": 2,
+                "productId": 3,
+                "firmwareVersion": "0.4.4",
+                "rfRegion": 1,
+            },
+        },
     ]
 }