feat: move to alpine base image

Author: ialejandro

Dockerfile

@@ -1,14 +1,15 @@
 ARG PYTHON_VERSION=3.12.5
 
-FROM python:${PYTHON_VERSION}
+FROM python:${PYTHON_VERSION}-alpine
 
 LABEL maintainer="Iván Alejandro Marugán <hello@ialejandro.rocks>" \
       description="Bitbucket Bot for Google Chat"
 
 COPY app /app
-COPY requirements.txt /requirements.txt
+COPY Pipfile* /
 
-RUN pip install -r /requirements.txt
+RUN pip install pipenv && \
+  pipenv sync --system
 
 WORKDIR /app