Migrate tailscalesd to uv and add flake packaging with a NixOS service module.

.gitlab-ci.yml

@@ -1,4 +1,4 @@
-image: python:3.11-bookwork
+image: python:3.11-bookworm
 
 stages:
   - test 
@@ -11,8 +11,9 @@ test:
     TAILSCALESD_TAILNET: example.com
   script:
     - apt-get update
-    - apt-get install -y make python3-poetry
-    - poetry install
+    - apt-get install -y make
+    - pip install uv
+    - uv sync --frozen --all-groups
     - make check
 
 docker-build: