Werk #16243: Cease to provide builds for ubuntu-20.04, Debian-10 and SLES12sp5

Component	Site management
Title	Cease to provide builds for ubuntu-20.04, Debian-10 and SLES12sp5
Date	May 2, 2024
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)

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