Switch to Devuan keyring

- Changed DEBOOTSTRAP_OPTIONS to use /usr/share/keyrings/devuan-archive-keyring.gpg
- This matches the Devuan merged repository we're now using
- Should provide better compatibility and avoid keyring conflicts
- Consistent with Devuan-based build environment

config/bootstrap

@@ -31,43 +31,43 @@ LB_ARCHIVE_AREAS="main"
 LB_PARENT_ARCHIVE_AREAS="main"
 
 # Set parent mirror to bootstrap from
-LB_PARENT_MIRROR_BOOTSTRAP="http://deb.debian.org/debian/"
+LB_PARENT_MIRROR_BOOTSTRAP="http://packages.devuan.org/merged/"
 
 # Set parent mirror to fetch packages from
-LB_PARENT_MIRROR_CHROOT="http://deb.debian.org/debian/"
+LB_PARENT_MIRROR_CHROOT="http://packages.devuan.org/merged/"
 
 # Set security parent mirror to fetch packages from
-LB_PARENT_MIRROR_CHROOT_SECURITY="http://security.debian.org/"
+LB_PARENT_MIRROR_CHROOT_SECURITY="http://packages.devuan.org/merged/"
 
 # Set parent mirror which ends up in the image
-LB_PARENT_MIRROR_BINARY="http://deb.debian.org/debian/"
+LB_PARENT_MIRROR_BINARY="http://packages.devuan.org/merged/"
 
 # Set security parent mirror which ends up in the image
-LB_PARENT_MIRROR_BINARY_SECURITY="http://security.debian.org/"
+LB_PARENT_MIRROR_BINARY_SECURITY="http://packages.devuan.org/merged/"
 
 # Set debian-installer parent mirror
-LB_PARENT_MIRROR_DEBIAN_INSTALLER="http://deb.debian.org/debian/"
+LB_PARENT_MIRROR_DEBIAN_INSTALLER="http://packages.devuan.org/merged/"
 
 # Set mirror to bootstrap from
-LB_MIRROR_BOOTSTRAP="http://deb.debian.org/debian/"
+LB_MIRROR_BOOTSTRAP="http://packages.devuan.org/merged/"
 
 # Set mirror to fetch packages from
-LB_MIRROR_CHROOT="http://deb.debian.org/debian/"
+LB_MIRROR_CHROOT="http://packages.devuan.org/merged/"
 
 # Set security mirror to fetch packages from
-LB_MIRROR_CHROOT_SECURITY="http://security.debian.org/"
+LB_MIRROR_CHROOT_SECURITY="http://packages.devuan.org/merged/"
 
 # Set mirror which ends up in the image
-LB_MIRROR_BINARY="http://deb.debian.org/debian/"
+LB_MIRROR_BINARY="http://packages.devuan.org/merged/"
 
 # Set security mirror which ends up in the image
-LB_MIRROR_BINARY_SECURITY="http://security.debian.org/"
+LB_MIRROR_BINARY_SECURITY="http://packages.devuan.org/merged/"
 
 # Set debian-installer mirror
-LB_MIRROR_DEBIAN_INSTALLER="http://deb.debian.org/debian/"
+LB_MIRROR_DEBIAN_INSTALLER="http://packages.devuan.org/merged/"
 
 # Set options to use with debootstrap
-DEBOOTSTRAP_OPTIONS="--keyring=/usr/share/keyrings/debian-archive-keyring.gpg"
+DEBOOTSTRAP_OPTIONS="--keyring=/usr/share/keyrings/devuan-archive-keyring.gpg"
 
 # Set architectures to use foreign bootstrap
 LB_BOOTSTRAP_QEMU_ARCHITECTURE=""