[BUGFIX] (Package) Clear message when package dir cannot be deleted
[BUGFIX] (Package) Clear message when package dir cannot be deleted

When the removal of a package directory fails, throw an exception that
hints at file permissions as a possible cause.

Fixes: #13979
Change-Id: I445530204cbe7413879b3130610ebc8ba3ab685f
Original-Commit-Hash: ee876fdaf524e55cf0fce90283f02271985cfc15

bwaidelich/flow-development-collection,aertmann/flow-development-collection,bwaidelich/flow-development-collection,gerhard-boden/flow-development-collection,chewbakartik/flow-development-collection,kitsunet/flow-development-collection,albe/flow-development-collection,neos/flow-development-collection,neos/flow-development-collection,robertlemke/flow-development-collection,kdambekalns/flow-development-collection,kdambekalns/flow-development-collection,fcool/flow-development-collection,robertlemke/flow-development-collection,fcool/flow-development-collection,albe/flow-development-collection,fcool/flow-development-collection,albe/flow-development-collection,dlubitz/flow-development-collection,gerhard-boden/flow-development-collection,dfeyer/flow-development-collection,fcool/flow-development-collection,neos/flow-development-collection,mkeitsch/flow-development-collection,kdambekalns/flow-development-collection,daniellienert/flow-development-collection,chewbakartik/flow-development-collection,chewbakartik/flow-development-collection,kdambekalns/flow-development-collection,kitsunet/flow-development-collection,dfeyer/flow-development-collection,daniellienert/flow-development-collection,robertlemke/flow-development-collection,mkeitsch/flow-development-collection,aertmann/flow-development-collection,mkeitsch/flow-development-collection,aertmann/flow-development-collection,dfeyer/flow-development-collection,robertlemke/flow-development-collection,dfeyer/flow-development-collection,dlubitz/flow-development-collection,gerhard-boden/flow-development-collection,bwaidelich/flow-development-collection,dlubitz/flow-development-collection,daniellienert/flow-development-collection,neos/flow-development-collection,kitsunet/flow-development-collection