build: explicitly use python 3.10

Dockerfile

@@ -5,6 +5,8 @@ ENV DEBIAN_FRONTEND=noninteractive
 
 RUN \
   apt-get update && \
+  apt-get install -y software-properties-common && \
+  add-apt-repository ppa:deadsnakes/ppa && \
   apt-get install -y python3.10 python3-pip curl && \
   curl -sSL https://install.python-poetry.org | python3 -
 RUN apt-get install uvicorn -y
@@ -14,8 +16,10 @@ ENV PATH "/root/.local/bin:$PATH"
 COPY pyproject.toml .
 COPY poetry.lock .
 
+RUN poetry env use 3.10
 RUN poetry install --with tools
 
+
 COPY . .
 
 ENTRYPOINT ["sleep", "infinity"]