Bump aioautomower to 2021.6.2

[Thomas55555]

No description provided.

[github-actions]

🎉 HACS repository validator action summary 🎉
✅ The repository is not archived
✅ manifest.json file exist
✅ All required keys are present in manifest.json
✅ hacs.json has the 'name' key set
✅ The repository has a description
✅ husqvarna_automower is added to https://github.com/home-assistant/brands NICE!
✅ The repository has topics
✅ The repository has issues enabled
✅ This day ends with an 'y' (Saturday)
✅ README.md exists
✅ Requirements validation
✅ Python wheels
✅ HACS load check