Sort vendor/composer/installed.json deterministically
Sort vendor/composer/installed.json deterministically

Just like composer.lock, sort installed.json in order of the package
names. This makes it easier to review diffs when this file is changed.

nicolas-grekas/composer,gencer/composer,stof/composer,floverdevel/composer,alcohol/composer,SpacePossum/composer,localheinz/composer,erasys/composer,naderman/composer,fabpot/composer,vdm-io/composer,staabm/composer,stefangr/composer,johnstevenson/composer,composer/composer,andrerom/composer,slbmeh/composer,milleruk/composer,dzuelke/composer,pierredup/composer