Added Dockerfile for easier script use

gitea/auto_mapper/Dockerfile

@@ -0,0 +1,15 @@
+# Use a Python base image
+FROM python:3.9
+
+# Set the working directory
+WORKDIR /app
+
+# Copy the Python file and .env file to the working directory
+COPY auto_mapper.py .
+COPY .env .
+
+# Install dependencies
+RUN pip install --no-cache-dir python-dotenv
+
+# Run the Python file
+CMD ["python", "auto_mapper.py"]