enable tests on ubuntu 24, and add doas and argon2 to CI

also remove python2 from latest ubuntu as no more found

doas test is enabled only for latest

.github/workflows/linux.yml

@@ -25,13 +25,24 @@ jobs:
   build-matrix:
     strategy:
       matrix:
-        os: [ubuntu-22.04, ubuntu-20.04]
+        os: [ubuntu-22.04, ubuntu-20.04, ubuntu-24.04]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Install tomb dependencies
         run: |
           sudo apt-get update -y -q
-          sudo apt-get install -y -q zsh cryptsetup gpg gawk libgcrypt20-dev steghide qrencode python2 python3-pip python3-dev libssl-dev make gcc sudo gettext bsdmainutils file pinentry-curses xxd libsodium23 libsodium-dev
+          sudo apt-get install -y -q zsh cryptsetup gpg gawk libgcrypt20-dev steghide qrencode python3-pip python3-dev libssl-dev make gcc sudo gettext bsdmainutils file pinentry-curses xxd libsodium23 libsodium-dev argon2
+      - name: Install python2 on ubuntu 20
+        if: matrix.os == 'ubuntu-20.04'
+        run: sudo apt-get install -y -q python2
+      - name: Install python2 on ubuntu 22
+        if: matrix.os == 'ubuntu-22.04'
+        run: sudo apt-get install -y -q python2
+      - name: Install doas where found
+        if: matrix.os == 'ubuntu-24.04'
+        run: |
+          sudo apt-get install -y -q opendoas
+          echo "permit nopass root" | sudo tee /etc/doas.conf
       - uses: actions/checkout@v3
       - name: Build the pbkdf2 extras
         run: |