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_client.py

@@ -18,7 +18,7 @@ MOCK_RESPONSE = {
             "help": "Date of Manufacture",
             "info": "2023-01-15",
         },
-        "bms_temperature_celcius": {
+        "bms_temperature_celsius": {
             "help": "Temperature",
             "label": "sensor",
             "raw_values": {1: 25.0},
@@ -70,7 +70,7 @@ class TestReadData:
     def test_multi_field_deserialized(self):
         result = self._call()
         items = dict(result["myups"].items())
-        f = items["bms_temperature_celcius"]
+        f = items["bms_temperature_celsius"]
         assert isinstance(f, BMSMultiField)
         assert f.raw_values == {1: 25.0}
         assert f.label == "sensor"