feat(gitlab-ci): Add logic for deploying aur-dev with docker-compose

The infrastructure changes are here[1].

[1] https://gitlab.archlinux.org/archlinux/infrastructure/-/merge_requests/492

docker-compose.aur-dev.yml

@@ -0,0 +1,73 @@
+version: "3.8"
+
+services:
+  ca:
+    volumes:
+      - cache:/cache
+
+  memcached:
+    restart: always
+
+  redis:
+    restart: always
+
+  mariadb:
+    restart: always
+
+  git:
+    restart: always
+    volumes:
+      - ${GIT_DATA_DIR}:/aurweb/aur.git
+      - cache:/cache
+      - ${MARIADB_SOCKET_DIR}:/var/run/mysqld
+
+  smartgit:
+    restart: always
+    volumes:
+      - ${GIT_DATA_DIR}:/aurweb/aur.git
+      - cache:/cache
+      - smartgit_run:/var/run/smartgit
+
+  cgit-php:
+    restart: always
+    volumes:
+      - ${GIT_DATA_DIR}:/aurweb/aur.git
+
+  cgit-fastapi:
+    restart: always
+    volumes:
+      - ${GIT_DATA_DIR}:/aurweb/aur.git
+
+  php-fpm:
+    restart: always
+    volumes:
+      - cache:/cache
+      - ${MARIADB_SOCKET_DIR}:/var/run/mysqld
+
+  fastapi:
+    restart: always
+    environment:
+      - FASTAPI_BACKEND="gunicorn"
+    volumes:
+      - cache:/cache
+      - ${MARIADB_SOCKET_DIR}:/var/run/mysqld
+
+  mariadb_init:
+    volumes:
+      - ${MARIADB_SOCKET_DIR}:/var/run/mysqld
+
+  nginx:
+    restart: always
+    volumes:
+      - ${GIT_DATA_DIR}:/aurweb/aur.git
+      - cache:/cache
+      - logs:/var/log/nginx
+      - smartgit_run:/var/run/smartgit
+
+volumes:
+  mariadb_run: {} # Share /var/run/mysqld
+  mariadb_data: {} # Share /var/lib/mysql
+  git_data: {} # Share aurweb/aur.git
+  smartgit_run: {}
+  cache: {}
+  logs: {}