Update Dockerfile

Dockerfile

@@ -23,9 +23,9 @@ RUN apt-get update && \
         gnupg2 \
         lsb-release \
         nano \
-        virtualbox \
+        apktool
         virtualbox-dkms \
-        linux-headers-$(uname -r) \
+         
     && apt-get clean 
 
 # Install Python dependencies (assuming requirements.txt is in the same directory)