Add gpg to the action prep script

Author: cmcgee1024

scripts/prep-gh-action.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
-apt-get --help && apt-get update && apt-get -y install curl make
-yum --help && (curl --help && yum -y install curl) && yum install make
+apt-get --help && apt-get update && apt-get -y install curl make gpg
+yum --help && (curl --help && yum -y install curl) && yum install make gpg
 
 (cat /etc/os-release | grep bookworm) && apt-get -y install libstdc++-12-dev gnupg2
 (cat /etc/os-release | grep 'Fedora Linux 39') && yum -y install libstdc++-devel libstdc++-static