chore: monthly updates for July'23

- migrate to `pdm` from `poetry`
- update dependencies
- improvises `dockerfile` (drops `containerfile`)
- only `python` & `pip` are required in ci/cd
- adds `compose.yml`
- simplifies local & containerized development

docker-compose.yml

@@ -0,0 +1,9 @@
+services:
+  waka-readme:
+    env_file:
+      - .env
+    build:
+      context: .
+      dockerfile: dockerfile
+    image: waka-readme:dev
+    container_name: WakaReadmeDev