switched to uv and gitea-actions-based pipeline

Dockerfile

@@ -1,17 +1,14 @@
-FROM python:3-slim
-ENV DOCKERIZED=true
-ARG BOT_VERSION
-# set at build time
-ENV BOT_VERSION=$BOT_VERSION
+FROM docker.io/python:3.13-alpine
+# use the latest version of uv, independently of the python version
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
 
 WORKDIR /app
-RUN pip install pipenv
 
+# copy the requirements and install them
+COPY pyproject.toml uv.lock .
+RUN uv sync --frozen
 
-COPY Pipfile Pipfile.lock ./
-
-RUN pipenv install --system --deploy
-
+# copy the rest of the code
 COPY bot .
 
-CMD ["python", "main.py"]
+CMD ["uv", "run", "main.py"]