Update docker file to use uv to build image.

Dockerfile

@@ -1,18 +1,15 @@
 FROM python:3.12.3-slim
 
+# install uv
+COPY --from=ghcr.io/astral-sh/uv:0.4.30 /uv /uvx /bin/
+
 RUN apt-get update && apt-get -y upgrade && apt-get -y install sqlite3
 
-WORKDIR /home
+# Copy project to image
+ADD . /agon
 
+# Sync the project into a new environment, using the frozen lockfile
+WORKDIR /agon
+RUN uv sync --frozen --no-dev
 
-COPY main.py main.py
+CMD ["uv", "run", "./main.py"]
-COPY pyproject.toml pyproject.toml
-
-COPY classes classes/
-COPY cogs cogs/
-COPY database_setup database_setup/
-COPY utilities utilities/
-
-RUN pip install --upgrade pip && pip install poetry && poetry export -f requirements.txt --output requirements.txt && pip install -r requirements.txt
-
-CMD ["python3", "./main.py"]