Change flux secret from PQ to non PQ

On version 2.9 of flux (planned for Q2) PQ Keys will be supported

scripts/encrypt_flux.sh

@@ -2,15 +2,15 @@
 
 set -eu
 
-if [ -z "${AGE_KEY}" ]; then
+if [ -z "${AGE_KEY_NO_PQ}" ]; then
 	echo "unbound variable"
 fi
-if [ ! -f "${AGE_KEY}" ]; then
-	echo "Error: ${AGE_KEY} file does not exist"
+if [ ! -f "${AGE_KEY_NO_PQ}" ]; then
+	echo "Error: ${AGE_KEY_NO_PQ} file does not exist"
 	exit 1
 fi
 
-PUBLIC_KEY=$(age-keygen -y $AGE_KEY)
+PUBLIC_KEY=$(age-keygen -y $AGE_KEY_NO_PQ)
 
 SECRETS_ENC_PATH=$HYDRA_SECRETS_PATH
 mkdir -p $SECRETS_ENC_PATH