test: Add test infrastructure and basic model testing

.drone.yml

@@ -1,16 +1,5 @@
 ---
 kind: pipeline
-type: docker
-name: test
-
-steps:
-- name: test
-  image: python:3.11
-  commands: 
-    - pip install poetry
-    - poetry run pytest --cov-report term-missing --cov=fediverse_blocklist_deploy tests
----
-kind: pipeline
 type: exec
 name: build
 
@@ -19,6 +8,9 @@ platform:
   arch: arm64
 
 steps:
+- name: test
+  commands: 
+    - poetry run pytest --cov-report term-missing --cov=fediverse_blocklist_deploy tests
 - name: build
   commands:
     - docker build -t gcrkrause/fediverse-blocklist-deploy .