Correct the ups_alarm field spelling

The upstream River 3 schema spells field 355 `ups_alram`. Use `ups_alarm` in the decoder, the generated schema, and the field reference. The schema generator now applies a rename map, so a regenerated schema keeps the corrected name.

bmspy/ecoflow_river3.py

@@ -110,7 +110,7 @@ _DISPLAY_PROPERTY_UPLOAD: dict[int, ProtoField] = {
     30:  ProtoField("pcs_fan_level"),
     195: ProtoField("en_beep"),
     358: ProtoField("low_power_alarm",         "%"),
-    355: ProtoField("ups_alram"),
+    355: ProtoField("ups_alarm"),
 }
 
 # ── River 3 — RuntimePropertyUpload field map ──────────────────────────────────

bmspy/ecoflow_river3_schema.py

@@ -238,7 +238,7 @@ MESSAGES = {
         317: ('generator_sub_battery_state', 'uint32', False),
         319: ('generator_maintence_state', 'bool', False),
         330: ('generator_pcs_err_code', 'uint32', False),
-        355: ('ups_alram', 'bool', False),
+        355: ('ups_alarm', 'bool', False),
         356: ('plug_in_info_pv_dc_amp_max', 'uint32', False),
         357: ('led_mode', 'uint32', False),
         358: ('low_power_alarm', 'uint32', False),