add RELEASE_PATH to cleanup

Author: raphaeltm

src/bin/install

@@ -239,5 +239,5 @@ rm "$FILENAME"
 echo "Installation completed. You can now use defang by typing '$BINARY_NAME' in the terminal."
 
 # Unset the variables and functions to avoid polluting the user's environment
-unset EXTRACT_DIR DOWNLOAD_URL RELEASE_JSON ARCH_SUFFIX ARCH OS FILENAME INSTALL_DIR BINARY_NAME REPLY EXPORT_PATH CURRENT_SHELL FOUND_PROFILE_FILE
+unset EXTRACT_DIR DOWNLOAD_URL RELEASE_JSON RELEASE_PATH ARCH_SUFFIX ARCH OS FILENAME INSTALL_DIR BINARY_NAME REPLY EXPORT_PATH CURRENT_SHELL FOUND_PROFILE_FILE
 unset -f _prompt_and_append_to_file _generate_completion_script _install_completion_script