Add php-smbclient

this only becomes valid in ubuntu 22

required for nc - nextcloud/server#31308

Dockerfile

@@ -49,7 +49,7 @@ RUN apt -y update && \
     # Python 3
     python3-dev python3-pip uwsgi-plugin-python3 python-dev python-setuptools python3-setuptools virtualenv virtualenvwrapper \
     # php 7.4
-    php7.4 php7.4-{bcmath,bz2,cgi,cli,common,curl,dba,dev,enchant,fpm,gd,gmp,imap,interbase,intl,json,ldap,mbstring,mysql,odbc,opcache,pgsql,phpdbg,pspell,readline,snmp,soap,sqlite3,sybase,tidy,xml,xmlrpc,xsl,zip} libapache2-mod-php7.4 php-{apcu,date,geoip,imagick,gnupg,mailparse,pear,redis,twig,uuid,validate,zmq} \
+    php7.4 php7.4-{bcmath,bz2,cgi,cli,common,curl,dba,dev,enchant,fpm,gd,gmp,imap,interbase,intl,json,ldap,mbstring,mysql,odbc,opcache,pgsql,phpdbg,pspell,readline,snmp,soap,sqlite3,sybase,tidy,xml,xmlrpc,xsl,zip} libapache2-mod-php7.4 php-{apcu,date,geoip,imagick,gnupg,mailparse,pear,redis,smbclient,twig,uuid,validate,zmq} \
     # good to have!
     ghostscript libgs-dev ffmpeg x264 x265 && \
     # keep this here, otherwise it installs php 7.4