v0.21.4

• Paket: use Packages storage #615 [@Numpsy]
• Fix VS2022 build #613 [@Thorium]
• Dotnet version SDK to allow minor version difference fwd #607 [@Thorium]
• docs: fix Shortcuts typo in the menu #584 [@pirrman]
• Fix false negatives in AvoidTooShortNames #548 [@janus]
• Fix cyclomatic complexity yielding redundant messages #559 #579 [@davidtgillard]
• Refactoring: rename DU #565 [@webwarrior-ws]