Closes #2112 /claim #2112

📑 Description

The SNMP Provider allows Keep to receive and process SNMP traps from network devices, converting them into alerts within the Keep platform.

• Implemented SNMP Provider with trap receiver functionality
• Convert SNMP traps to Keep alerts
• Configure custom severity mappings for different OIDs

https://github.com/user-attachments/assets/4f8c59dc-ce38-4acb-ab46-76ff53560168

✅ Checks

• My pull request adheres to the code style of this project
• My code requires changes to the documentation
• I have updated the documentation as required
• All the tests have passed

ℹ Additional Information

The SNMP Provider includes OID translation for human-readable alerts. Added dependencies: pysnmp, pysnmp-lextudio, pyasn1.