replace "docker-compose" with "docker compose"

All cli flag usage appears to be exactly the same. Docker says as much
in their migration docs: https://docs.docker.com/compose/migrate/#command-line-flags-and-subcommands

Signed-off-by: Taylor Silva <dev@taydev.net>

README.md

@@ -13,7 +13,7 @@ Configuration files for BOSH- and terraform-managed deployments used in testing.
 A lot of Dockerfiles are used throughout the Concourse automation. Many of those are in the `/dockerfiles` folder.
 
 ## Overrides
-Overrides for `docker-compose`.
+Overrides for `docker compose`.
 
 ## Pipelines
 Pipeline definitions live here. Some highlights:

tasks/scripts/quickstart-smoke

@@ -9,7 +9,7 @@ start_docker
 # load in concourse/concourse-dev:latest
 [ -d concourse-rc-image ] && docker load -i concourse-rc-image/image.tar
 
-docker-compose -f docs/docker-compose.yml -f ci/overrides/docker-compose.latest-rc.yml up -d
+docker compose -f docs/docker-compose.yml -f ci/overrides/docker-compose.latest-rc.yml up -d
 
 # now run the watjs/smoke tests
 mkdir -p endpoint-info
@@ -22,7 +22,7 @@ popd
 ci/tasks/scripts/smoke
 
 pushd docs
-  docker-compose down
+  docker compose down
 popd
 
 stop_docker

tasks/scripts/testflight

@@ -14,4 +14,4 @@ go install -mod=mod github.com/onsi/ginkgo/v2/ginkgo
 
 ginkgo -r -nodes=4 --race --keep-going --poll-progress-after=15s --flake-attempts=3 ./testflight "$@"
 
-docker-compose logs > ../docker-compose.log
+docker compose logs > ../docker-compose.log

tasks/scripts/with-docker-compose

@@ -21,15 +21,15 @@ DOCKER_COMPOSE_FLAGS="-f concourse/docker-compose.yml -f ci/overrides/docker-com
 
 ci/tasks/scripts/generate-keys
 
-docker-compose \
+docker compose \
   $DOCKER_COMPOSE_FLAGS \
   -f ci/overrides/docker-compose.no-build.yml \
   up --no-build -d
 
 trap stop_docker_compose EXIT SIGTERM SIGINT
 function stop_docker_compose() {
-  docker-compose -f concourse/docker-compose.yml logs > docker-compose.log
-  docker-compose -f concourse/docker-compose.yml down
+  docker compose -f concourse/docker-compose.yml logs > docker-compose.log
+  docker compose -f concourse/docker-compose.yml down
   stop_docker
 }