Add verification of signatures when running self-update
Add verification of signatures when running self-update

balbuf/composer,slbmeh/composer,till/composer,MoT3rror/composer,andrerom/composer,johnstevenson/composer,davidolrik/composer,pierredup/composer,fabpot/composer,floverdevel/composer,jreinke/composer,staabm/composer,fabiang/composer,erasys/composer,vdm-io/composer,composer/composer,localheinz/composer,stof/composer,javihgil/composer,curry684/composer,remicollet/composer,alcohol/composer,naderman/composer,phansys/composer,gencer/composer,nicolas-grekas/composer,yaman-jain/composer,JBleijenberg/composer,dzuelke/composer,Soullivaneuh/composer,stefangr/composer,milleruk/composer,hirak/composer,SpacePossum/composer