Update buildkite plugin docker-compose to v5.12.1 (#17)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.buildkite/pipeline.yml

@@ -5,7 +5,7 @@ steps:
   - name: ":golangci-lint: lint"
     command: golangci-lint run --verbose --timeout 3m
     plugins:
-      - docker-compose#v5.10.0:
+      - docker-compose#v5.12.1:
           config: .buildkite/compose.yaml
           run: golangci-lint
           tty: true
@@ -14,7 +14,7 @@ steps:
     commands:
       - go test -cover -v ./...
     plugins:
-      -  docker-compose#v5.10.0:
+      -  docker-compose#v5.12.1:
           config: .buildkite/compose.yaml
           run: golangci-lint
           tty: true