Run tests in gitlab ci

.gitlab-ci.yml

+stages:
+  - test
+  - build
+
+tests:
+  stage: test
+  services:
+    - name: timescale/timescaledb:latest-pg11
+      alias: pg
+      variables:
+        POSTGRES_PASSWORD: postgres
+        POSTGRES_DB: funkwhale_network_test
+  image: python:3.10-alpine
+  before_script:
+    - apk add poetry
+    - poetry install
+  script:
+    - poetry run pytest
+  variables:
+    DB_DSN: user=postgres password=postgres dbname=funkwhale_network host=db
+