update Dockerfile to copy only FastETL specific files

Dockerfile

@@ -5,12 +5,30 @@ USER root
 # Copy Ro-dou core files from the host Docker context
 COPY src /opt/airflow/dags/ro_dou
 
+# Install Git
+RUN apt-get update && \
+    apt-get install -y git && \
+    rm -rf /var/lib/apt/lists/*
+
+# Clone the FastETL GitHub repository and copy specified files
+RUN git clone https://github.com/economiagovbr/FastETL.git /tmp/repo-FastETL && \
+    mkdir -p /opt/airflow/plugins/fastetl/hooks && \
+    mkdir -p /opt/airflow/plugins/fastetl/custom_functions/utils && \
+    cp /tmp/repo-FastETL/fastetl/hooks/dou_hook.py /opt/airflow/plugins/fastetl/hooks/ && \
+    cp -r /tmp/repo-FastETL/fastetl/custom_functions/utils/date.py /opt/airflow/plugins/fastetl/custom_functions/utils/
+
+# Remove Git and clean up package cache
+RUN apt-get remove -y git && \
+    apt-get autoremove -yqq --purge && \
+    apt-get clean && \
+    rm -rf /tmp/repo-FastETL
+
+RUN chown -R airflow /opt/airflow
+
 USER airflow
 
 # Install additional Airflow dependencies
-RUN pip install --no-cache-dir --user \
-    apache-airflow[microsoft.mssql,google_auth] \
-    apache-airflow-providers-fastetl
+RUN pip install --no-cache-dir --user 'apache-airflow[microsoft.mssql,google_auth]'
 
 # Copy and install requirements.txt
 COPY requirements.txt /