Adding .my.cnf to disable column-statistics backup

Fixes #10176

The ```.my.cnf``` file is copied to ```/root/.my.cnf``` for each
Dockerfile that exists

Dockerfile

@@ -77,6 +77,8 @@ COPY . /var/www/html
 
 RUN a2enmod rewrite
 
+COPY docker/.my.cnf /root/.my.cnf
+
 ############ INITIAL APPLICATION SETUP #####################
 
 WORKDIR /var/www/html

Dockerfile.alpine

@@ -34,6 +34,8 @@ RUN apk add --no-cache \
  mysql-client \
  tini
 
+COPY docker/.my.cnf /root/.my.cnf
+
 # Where apache's PID lives
 RUN mkdir -p /run/apache2 && chown apache:apache /run/apache2
 

Dockerfile.fpm-alpine

@@ -98,5 +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
 ENTRYPOINT [ "/usr/local/bin/docker-snipeit-entrypoint" ]
 CMD [ "/usr/local/bin/docker-php-entrypoint", "php-fpm" ]

docker/.my.cnf

@@ -0,0 +1,2 @@
+[mysqldump]
+column-statistics=0