Replace use of docker-compose with docker compose. (#668)

* update: use `docker compose` in favour of `docker-compose`

* `version` is obsolete"

.github/docs/wiki/Setting-up.md

@@ -10,8 +10,7 @@ git clone https://github.com/osuAkatsuki/bancho.py
 cd bancho.py
 
 # install docker for building the application image
-# install docker-compose for running the application & dependencies
-sudo apt install -y docker docker-compose
+sudo apt install -y docker
 ```
 
 ## configuring bancho.py

.github/docs/wiki/locale/de-DE/Setting-up-de-DE.md

@@ -10,8 +10,7 @@ git clone https://github.com/osuAkatsuki/bancho.py
 cd bancho.py
 
 # install docker for building the application image
-# install docker-compose for running the application & dependencies
-sudo apt install -y docker docker-compose
+sudo apt install -y docker
 ```
 
 ## configuring bancho.py

.github/docs/wiki/locale/zh-CN/Setting-up-zh-CN.md

@@ -10,8 +10,7 @@ git clone https://github.com/osuAkatsuki/bancho.py
 cd bancho.py
 
 # install docker for building the application image
-# install docker-compose for running the application & dependencies
-sudo apt install -y docker docker-compose
+sudo apt install -y docker
 ```
 
 ## configuring bancho.py

Makefile

@@ -5,24 +5,24 @@ build:
 	docker build -t bancho:latest .
 
 run:
-	docker-compose up bancho mysql redis
+	docker compose up bancho mysql redis
 
 run-bg:
-	docker-compose up -d bancho mysql redis
+	docker compose up -d bancho mysql redis
 
 run-caddy:
 	caddy run --envfile .env --config ext/Caddyfile
 
 last?=1
 logs:
-	docker-compose logs -f bancho mysql redis --tail ${last}
+	docker compose logs -f bancho mysql redis --tail ${last}
 
 shell:
 	poetry shell
 
 test:
-	docker-compose -f docker-compose.test.yml up -d bancho-test mysql-test redis-test
-	docker-compose -f docker-compose.test.yml exec -T bancho-test /srv/root/scripts/run-tests.sh
+	docker compose -f docker-compose.test.yml up -d bancho-test mysql-test redis-test
+	docker compose -f docker-compose.test.yml exec -T bancho-test /srv/root/scripts/run-tests.sh
 
 lint:
 	poetry run pre-commit run --all-files

docker-compose.test.yml

@@ -1,5 +1,3 @@
-version: "3.8"
-
 services:
   ## shared services
 

docker-compose.yml

@@ -1,5 +1,3 @@
-version: "3.8"
-
 services:
   ## shared services