Werk #17407: Support diagnostics: Fix unspecific error message when collecting RPM data

Component	Setup
Title	Support diagnostics: Fix unspecific error message when collecting RPM data
Date	Jan 22, 2025
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.4.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME) 2.3.0p26 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME) 2.2.0p40 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

In rare cases, the collection of RPM packages failed with the error message

warning: Found bdb_ro Packages database while attempting sqlite backend: using bdb_ro backend
error: bdb_ro error reading Packages database

This werk improves the error handling and prints out a more helpful message.

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