Merge pull request 'Expose max_upload_size as a configurable option' (#51) from cas_expose_maxupload into main

Reviewed-on: https://git.coopcloud.tech/coop-cloud/matrix-synapse/pulls/51
Reviewed-by: decentral1se <decentral1se@noreply.git.coopcloud.tech>

compose.yml

@@ -12,6 +12,7 @@ services:
       - STACK_NAME
       - NGINX_ACCESS_LOG_LOCATION
       - NGINX_ERROR_LOG_LOCATION
+      - MAX_UPLOAD_SIZE
     configs:
       - source: nginx_config
         target: /etc/nginx/nginx.conf
@@ -89,6 +90,7 @@ services:
       - LOGIN_LIMIT_ACCOUNT_PER_SECOND=${LOGIN_LIMIT_ACCOUNT_PER_SECOND:-0.003}
       - LOGIN_LIMIT_ACCOUNT_BURST=${LOGIN_LIMIT_ACCOUNT_BURST:-5}
       - WEB_CLIENT_LOCATION
+      - MAX_UPLOAD_SIZE
     networks:
       - internal
     entrypoint: /docker-entrypoint.sh