Entrypoint fix and Puma configuration update

• Create GNUPGHOME with -p to prevent failures if it already exists.

  If the GNUPGHOME existed but was empty, mkdir would fail without -p.

• Preload the frontend before forking off workers with preload_app!.

  Create GNUPGHOME with -p to prevent failures if it already exists. (We’ve been running our 2.7 instance with this specified on command line for some time already.)

enabled an automatic merge when the pipeline for 26f6e1d5 succeeds

merged