cfg: add library configuration for libselinux

Author: cgzones

.github/workflows/CI-unixish.yml

@@ -359,7 +359,7 @@ jobs:
       - name: Install missing software on ubuntu 22.04 (cfg)
         if: matrix.os == 'ubuntu-22.04'
         run: |
-          sudo apt-get install libcairo2-dev libcurl4-openssl-dev liblua5.3-dev libssl-dev libsqlite3-dev libcppunit-dev libsigc++-2.0-dev libgtk-3-dev libboost-all-dev libwxgtk3.0-gtk3-dev xmlstarlet qtbase5-dev
+          sudo apt-get install libcairo2-dev libcurl4-openssl-dev liblua5.3-dev libssl-dev libsqlite3-dev libcppunit-dev libsigc++-2.0-dev libgtk-3-dev libboost-all-dev libselinux-dev libwxgtk3.0-gtk3-dev xmlstarlet qtbase5-dev
 
       # coreutils contains "nproc"
       - name: Install missing software on macos