Werk #18597: Fix various certificate verification errors for special agents

Component

Checks & agents

Title

Fix various certificate verification errors for special agents

Date

Dec 9, 2025

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.5.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.4.0p18 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

This fixes certificate verification errors various special agents (in particular but not exclusively special_prism and special_vsphere). An incomplete environment used by the automation helpers caused some certificate validations to fail during manual discovery (but not during actual checking).

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