Extended the CI with Mac OS support, from-scratch builds and code alerts by dscanner

[CrsiX]

• Added a build pipeline for Linux, Windows and MacOS without caching ("build from scratch")
• Fixed clippy SARIF results to use the correct relative paths (prefix rorm/)
• Added scripts to convert the result file of dscanner to the SARIF file format for Code QL
• Fixed caching issues on Windows (it's still slow, it's Windows)
• Added MariaDB 10.7 to the pipeline (it has End Of Life in Feb 2023)
• Dropped the clippy check from the Windows pipeline (for speed-up and to remove duplication)

Note that CI on Windows and Linux currently still fails due to incompatible changes in the integration tests and (probably) a regression in SQL building for Postgres.