Fix RM mini 3 update manager

[felipediel]

Proposed change

Create a separate class to manage RM mini 3 updates correctly. These devices do not have sensors. If we check_sensors() for RM mini 3 (0x5f36) we get a StorageError(). So we are gonna say hello to check if the device is online.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes Broadlink 0x5f36 added to integration, but no devices or entity found #40225
• This PR is related to issue:
• Link to documentation pull request:

Checklist

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[probot-home-assistant]

Hey there @Danielhiversen, mind taking a look at this pull request as its been labeled with an integration (broadlink) you are listed as a codeowner for? Thanks!
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[felipediel]

@balloob I made a mini patch for RM mini 3, so users don't need to wait for the library.

[felipediel]

This will do the trick for now, but we should consider segregating interfaces at the library in the future.