Downgrade pysnmp-lextudio to version 5.0.34

[bieniu]

Breaking change

Proposed change

It appears that some of the code on which SNMP device_tracker is based has been removed from the pysnmp-lextudio library lextudio/pysnmp#52

As a temporary workaround, I suggest downgrading the library to version 5.0.34 as users report that this version works fine. This is a partially revert of #111193

The SNMP device_tracker code needs to be rewritten. Unfortunately, I don't have a compatible device and I'm unable to undertake this task.

Changelog: lextudio/pysnmp@v5.0.34...v6.0.2

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 SNMP device tracker broken in 2024.3.0 and Python 3.12 #112548
• This PR is related to issue:
• Link to documentation pull request:

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