Replace .my.cnf with column-statistics.cnf at the system level for mysqldump

Fixes #10176

The `column-statistics.cnf` file is copied to `/etc/mysql/conf.d/column-statistics.cnf` for each Dockerfile that exists.

This puts it as a system level mysql client change, so the web ui interface also works.

Dockerfile

@@ -77,7 +77,7 @@ COPY . /var/www/html
 
 RUN a2enmod rewrite
 
-COPY docker/.my.cnf /root/.my.cnf
+COPY docker/column-statistics.cnf /etc/mysql/conf.d/column-statistics.cnf
 
 ############ INITIAL APPLICATION SETUP #####################
 

Dockerfile.alpine

@@ -32,7 +32,7 @@ RUN  apk add --no-cache \
         mysql-client \
         tini
 
-COPY docker/.my.cnf /root/.my.cnf
+COPY docker/column-statistics.cnf /etc/mysql/conf.d/column-statistics.cnf
 
 # Where apache's PID lives
 RUN mkdir -p /run/apache2 && chown apache:apache /run/apache2

Dockerfile.fpm-alpine

@@ -98,6 +98,6 @@ VOLUME [ "/var/lib/snipeit" ]
 
 COPY --chown=www-data:www-data docker/docker-secrets.env /var/www/html/.env
 COPY --chmod=655 docker/docker-entrypoint.sh /usr/local/bin/docker-snipeit-entrypoint
-COPY docker/.my.cnf /root/.my.cnf
+COPY docker/column-statistics.cnf /etc/mysql/conf.d/column-statistics.cnf
 ENTRYPOINT [ "/usr/local/bin/docker-snipeit-entrypoint" ]
 CMD [ "/usr/local/bin/docker-php-entrypoint", "php-fpm" ]