ci: fix build for older debian deps

also drop ubuntu 20.04 from build matrix, include 24.04 instead which
is soon to go stable.

Signed-off-by: Alexander Fougner <fougner89@gmail.com>

.github/workflows/build-packages.yml

@@ -8,7 +8,7 @@ jobs:
     name: bcachefs-tools-deb
     strategy:
       matrix:
-        os: [ubuntu-20.04, ubuntu-22.04]
+        os: [ubuntu-22.04, ubuntu-24.04]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
@@ -21,6 +21,7 @@ jobs:
           sudo apt-get update && sudo apt-get -y --no-install-recommends install \
               valgrind \
               equivs devscripts
+          grep -q 22.04 /etc/os-release && sed -i  -e 's/ systemd-dev,/ systemd,/g' debian/control
           mk-build-deps
           sudo apt install ./bcachefs-tools-build-deps_*.deb
       - name: Setup Rust