releases: add sys-apps/pv to release media

It's a useful tiny tool to allow monitoring progress.

Reported-by: Kerin Millar <kfm@plushkava.net>
Signed-off-by: Sam James <sam@gentoo.org>

releases/specs/amd64/hardened/admincd-stage1.spec

@@ -149,6 +149,7 @@ livecd/packages:
 	sys-apps/nvme-cli
 	sys-apps/pciutils
 	sys-apps/pcmciautils
+	sys-apps/pv
 	sys-apps/sdparm
 	sys-apps/usbutils
 	sys-apps/sed

releases/specs/amd64/installcd-stage1.spec

@@ -71,6 +71,7 @@ livecd/packages:
 	sys-apps/nvme-cli
 	sys-apps/pciutils
 	sys-apps/pcmciautils
+	sys-apps/pv
 	sys-apps/sdparm
 	sys-apps/usbutils
 	sys-auth/ssh-import-id

releases/specs/amd64/livegui/livegui-stage1.spec

@@ -204,6 +204,7 @@ livecd/packages:
 	sys-apps/nvme-cli
 	sys-apps/pciutils
 	sys-apps/pcmciautils
+	sys-apps/pv
 	sys-apps/sdparm
 	sys-apps/sed
 	sys-apps/setserial