Update prepare-ci.sh

Author: me-no-dev

tools/prepare-ci.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
 
-sudo apt-get install -y git wget curl libssl-dev libncurses-dev flex bison gperf python3 cmake ninja-build ccache
+sudo apt update && sudo apt install -y git wget curl libssl-dev libncurses-dev flex bison gperf python3 cmake ninja-build ccache
 curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py && python3 get-pip.py && \
 pip3 install setuptools pyserial click future wheel cryptography pyparsing pyelftools