fix: decrease home data rate limits

[Lash-L]

15/hour seems to be too aggressive.

Something on my real instance got mad after the update and failed to get home data repeatedly. I wish I knew the cause, but unfortunately I do not as I did not have debug logging enabled, I just end up seeing the home data bucket full.

My instance ended up causing a slowdown on the app and I believe put itself in a bad state that maybe it continued to fail to get home data after sending ~15/hour for a few hours

Dramatically decreasing to limit potential rate limiting on Roborock's side and increase the chance of us automatically recovering.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Files with missing lines	Coverage Δ
roborock/web_api.py	51.62% <ø> (ø)

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[Copilot]

Pull request overview

This PR reduces the rate limits for home data API calls to prevent instances from hitting Roborock's API rate limits and entering a degraded state. The change decreases the minute limit from 5 to 3 requests and the hourly limit from 15 to 5 requests.

Key Changes:

• Reduced home data API rate limit from 5 to 3 requests per minute
• Reduced home data API rate limit from 15 to 5 requests per hour

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