gatekeeper: update GitHub workflow for Ubuntu 24.04

.github/workflows/c-cpp.yml

@@ -10,7 +10,7 @@ on:
 jobs:
   build:
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     steps:
     - name: Checkout repository and submodules
@@ -27,7 +27,7 @@ jobs:
         libhugetlbfs-bin build-essential gcc-multilib linux-headers-`uname -r`
         libmnl0 libmnl-dev libkmod2 libkmod-dev libnuma-dev libelf1 libelf-dev
         libc6-dev-i386 autoconf flex bison libncurses5-dev libreadline-dev
-        python python3-pyelftools libcap-dev libcap2 meson ninja-build
+        python3 python3-pyelftools libcap-dev libcap2 meson ninja-build
         pkg-config
 
     - name: Setup Gatekeeper

README.md

@@ -118,8 +118,8 @@ page.
 Once the packages are downloaded, they can be installed with the commands below:
 
 ```console
-$ tar -zxvf gatekeeper-ubuntu-20.04-packages.tar.gz
-$ cd gatekeeper-ubuntu-20.04-packages
+$ tar -zxvf gatekeeper-ubuntu-24.04-packages.tar.gz
+$ cd gatekeeper-ubuntu-24.04-packages
 $ sudo dpkg -i gatekeeper-bird_*_amd64.deb gatekeeper_*_amd64.deb
 ```
 
@@ -180,7 +180,7 @@ $ sudo apt-get update
 $ sudo apt-get -y -q install git clang devscripts doxygen libhugetlbfs-bin \
     build-essential gcc-multilib linux-headers-`uname -r` libmnl0 libmnl-dev \
     libkmod2 libkmod-dev libnuma-dev libelf1 libelf-dev libc6-dev-i386 \
-    autoconf flex bison libncurses5-dev libreadline-dev python \
+    autoconf flex bison libncurses5-dev libreadline-dev python3 \
     libcap-dev libcap2 meson ninja-build pkg-config
 ```