improved ogmios fix

scripts/cnode-helper-scripts/guild-deploy.sh

@@ -459,7 +459,7 @@ download_cardanohwcli() {
 download_ogmios() {
   [[ -z ${ARCH##*aarch64*} ]] && err_exit "  The ogmios pre-compiled binary is not available for ARM, you might need to build them!"
   echo -e "\nInstalling Ogmios"
-  if command -v ogmios >/dev/null; then ogmios_version="$(ogmios --version)"; else ogmios_version="v0.0.0"; fi
+  if command -v ogmios >/dev/null; then ogmios_version="$(ogmios --version)" 2>/dev/null || ogmios_version="v0.0.0"; else ogmios_version="v0.0.0"; fi
   rm -rf /tmp/ogmios && mkdir /tmp/ogmios
   pushd /tmp/ogmios >/dev/null || err_exit
   ogmios_asset_url="$(curl -s https://api.github.com/repos/CardanoSolutions/ogmios/releases | jq -r '.[].assets[].browser_download_url' | grep x86_64-linux.zip | head -1)"