Log an exception mqtt client call back throws

[jbouwh]

Proposed change

We should catch and exceptions that occur when MQTT client callbacks cause them. This PR set the MQTT client option suppress_exceptions = True to suppress exceptions during callbacks.

In case of a topic with an invalid encoding, we catch and log this error.

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)
• Deprecation (breaking change to happen in the future)
• 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 #
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[home-assistant]

Hey there @emontnemery, @bdraco, mind taking a look at this pull request as it has been labeled with an integration (mqtt) you are listed as a code owner for? Thanks!

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[jbouwh]

Thnx!