fix (earu_eaemp3c100_energymeter): scale frequency another magnitude

In Tuya cloud data from #3003, frequency is documented as an ambiguous "0.00hz"
Assumption was that it meant 2 decimal places, but it seems they just left off
the final 1 and it should be 0.001Hz.

Issue #4194

custom_components/tuya_local/devices/earu_eaemp3c100_energymeter.yaml

@@ -587,7 +587,7 @@ entities:
         name: sensor
         mask: "00000000000000000000000000FFFF"
         mapping:
-          - scale: 100
+          - scale: 1000
   - entity: sensor
     class: reactive_power
     name: Reactive power B
@@ -628,7 +628,7 @@ entities:
         name: sensor
         mask: "00000000000000000000000000FFFF"
         mapping:
-          - scale: 100
+          - scale: 1000
   - entity: sensor
     class: reactive_power
     name: Reactive power C
@@ -669,7 +669,7 @@ entities:
         name: sensor
         mask: "00000000000000000000000000FFFF"
         mapping:
-          - scale: 100
+          - scale: 1000
   - entity: sensor
     class: energy
     category: diagnostic