[GraphBot] Fix if syntax in inject_env.sh

pica-graphbot/inject_env.sh

@@ -3,12 +3,12 @@
 if [ -z "${SFTP_USER}" ]; then
   echo "SFTP_USER not set, exiting!"
   exit 1
-else
+fi
 
 if [ -z "${SFTP_PASSWORD}" ]; then
   echo "SFTP_PASSWORD not set, exiting!"
   exit 1
-else
+fi
 
 echo "Inject SFTP credentials..."
 sed -i "s/SFTP_USER/$SFTP_USER/g" /entrypoint.sh