Update ccpp.yml

.github/workflows/ccpp.yml

@@ -11,7 +11,7 @@ jobs:
     - uses: actions/checkout@v1
     - name: install packages
       run: |
-        sudo apt-get update && apt-get install -yq --no-install-recommends python-yaml vim telnet git
+        sudo apt-get update && sudo apt-get install -yq --no-install-recommends python-yaml vim telnet git
         ca-certificates build-essential ocaml ocamlbuild automake autoconf libtool wget python
         libssl-dev libssl-dev libcurl4-openssl-dev protobuf-compiler git libprotobuf-dev alien 
         cmake debhelper uuid-dev libxml2-dev libprotobuf10 cmake flex bison  libprocps-dev ccache