Create versions file before sourcing it

Signed-off-by: Christian König <ckoenig@posteo.de>

automated install/basic-install.sh

@@ -2717,12 +2717,12 @@ main() {
 
     restart_service pihole-FTL
 
-    # Download and compile the aggregated block list
-    runGravity
-
     # Update local and remote versions via updatechecker
     /opt/pihole/updatecheck.sh
 
+    # Download and compile the aggregated block list
+    runGravity
+
     if [[ "${useUpdateVars}" == false ]]; then
         displayFinalMessage "${pw}"
     fi