SDK power_status interface to receive bounds is very spammy

[Marenz]

What happened?

The new versions of the SDK send power bounds updates multiple times per second without any bound changing. This is visible both with real hardware and with the sandbox:

17:41:48,031,31 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:48,037,37 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:48,237,237 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:48,246,246 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:48,435,435 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:48,443,443 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:48,636,636 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:48,646,646 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:48,840,840 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:48,846,846 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:49,025,25 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:49,034,34 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:49,240,240 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:49,248,248 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:49,430,430 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:49,437,437 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:49,635,635 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:49,641,641 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]
17:41:49,837,837 INFO [fcr_balancing_actor.py:243] Battery power bounds changed to [-1.262 MW, 1.31 MW]

What did you expect instead?

.

Affected version(s)

No response

Affected part(s)

Data pipeline (part:data-pipeline)

Extra information

No response

[Marenz]

See also the current workaround https://github.com/frequenz-io/frequenz-actor-fcr-balancing/pull/313