UHomeUponor Integration v1.4.0 - fix stability aiohttp improvements

What's Changed

• Improve stability with many thermostats by @ssorensen in #40
• Missing inherit from SensorEntity for sensors needing statistics by @LordMike in #41
• fix: stability improvements ported from uponorX265 PR #20 by @dave-code-ruiz in #43

New Contributors

• @ssorensen made their first contribution in #40

Full Changelog: 1.3.5...1.4.0