Werk #16170: snmp: Store OID cache per context group

Component	Checks & agents
Title	snmp: Store OID cache per context group
Date	Feb 7, 2024
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.4.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT 2.3.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT 2.2.0p23 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT

SNMP caching didn't take contexts in consideration when storing OID data. This led to the same result being reported for the OID in different sections even if sections use different contexts.

Now, SNMP caching stores fetched OID data for every group of contexts it was called with.

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