docker: bump serversideup/php from 8.3-fpm-nginx-alpine-v3.5.1 to 8.4-fpm-nginx-alpine-v3.5.1#2

dependabot[bot] wants to merge 1 commit intomainalexjustesen/docker-speedtest-tracker:mainfrom

dependabot/docker/serversideup/php-8.4-fpm-nginx-alpine-v3.5.1alexjustesen/docker-speedtest-tracker:dependabot/docker/serversideup/php-8.4-fpm-nginx-alpine-v3.5.1Copy head branch name to clipboard