Update to php7.3

conf/nginx.conf

@@ -18,7 +18,7 @@ location __PATH__/ {
   try_files $uri $uri/ index.php;
   location ~ [^/]\.php(/|$) {
     fastcgi_split_path_info ^(.+?\.php)(/.*)$;
-    fastcgi_pass unix:/var/run/php/php7.4-fpm-__NAME__.sock;
+    fastcgi_pass unix:/var/run/php/php7.3-fpm-__NAME__.sock;
 
     fastcgi_index index.php;
     include fastcgi_params;