[2.3.0] Checkmk Werk 16146 created: Avoid crash upon failure to create RRD files

Title: Avoid crash upon failure to create RRD files Class: fix Compatible: compat Component: core Date: 1702630948 Edition: cre Level: 1 Version: 2.3.0b1 Failure to create an RRD file would generate a crash report. Now, we generate a log entry explaining the error, without crashing. This has no incidence on the monitoring but the data is not saved on disk anymore.