chore: display cmd to update session-desktop once release is made

Author: Bilb

prepare_release.sh

@@ -39,4 +39,6 @@ GH_RELEASE_URL=$(gh release create v$PACKAGE_VERSION -t v$PACKAGE_VERSION --late
 echo "Uploading tar archive to release $PACKAGE_VERSION..."
 gh release upload v$PACKAGE_VERSION libsession_util_nodejs-v$PACKAGE_VERSION.tar.gz
 echo "GH_RELEASE_URL: $GH_RELEASE_URL"
+echo "Update session-desktop with this new libsession-nodejs version with: "
+echo "yarn upgrade https://github.com/session-foundation/libsession-util-nodejs/releases/download/v$PACKAGE_VERSION/libsession_util_nodejs-v$PACKAGE_VERSION.tar.gz"
 echo "Done"