build: Bump the e-d-s dependency to 3.1.5
build: Bump the e-d-s dependency to 3.1.5

We totally missed this on previous releases and
it is now causing problems for packagers.

renatofilho/folks2,renatofilho/folks2,renatofilho/folks2,pwithnall/folks,renatofilho/folks2,GNOME/folks,GNOME/folks,renatofilho/folks,GNOME/folks,renatofilho/folks,pwithnall/folks,pwithnall/folks,renatofilho/folks,renatofilho/folks