Rename bms_temperature_celcius to bms_temperature_celsius

Correct the spelling in the JBD and EcoFlow snapshots, the diagnostic tool, and the tests. UPS.from_dict maps the old name to the new name, so a client still reads data from an older server during an upgrade.

InfluxDB and Prometheus now receive this measurement under the new name.

tests/test_classes.py

@@ -145,6 +145,11 @@ class TestUPS:
         assert isinstance(items["bms_temps"], BMSMultiField)
         assert items["bms_temps"].raw_values == {1: 25.0}
 
+    def test_from_dict_corrects_renamed_field(self):
+        field = {"help": "Temperature", "label": "sensor", "raw_values": {1: 25.0}, "values": {1: "25.00"}}
+        ups = UPS.from_dict({"bms_temperature_celcius": field})
+        assert [name for name, _ in ups.items()] == ["bms_temperature_celsius"]
+
     def test_bool_true_when_populated(self):
         assert bool(self._snapshot()) is True