Fix race condition on fifo creation

generate_svc_account_key.sh

@@ -7,4 +7,4 @@
 #
 
 read -p 'Service Account: ' account
-sudo -u "$account" -H -- bash -c "cd ~; rm -f key key.pub; mkfifo key key.pub && cat key && cat key.pub >> /etc/ssh/authorized_keys/$account & echo \"y\" | ssh-keygen -q -t ed25519 -N \"\" -f key &>/dev/null; rm -f key key.pub"
+sudo -u "$account" -H -- bash -c "cd ~; rm -f key key.pub; mkfifo key key.pub; cat key && cat key.pub >> /etc/ssh/authorized_keys/$account & echo \"y\" | ssh-keygen -q -t ed25519 -N \"\" -f key &>/dev/null; rm -f key key.pub"