CI ARM: build with RPi OS also for 64b

.github/workflows/arm-build.yml

@@ -17,12 +17,8 @@ jobs:
         arch: [armhf, arm64]
         include:
           - arch: armhf
-            repo: http://mirrordirector.raspbian.org/raspbian/
-            keyring: /etc/apt/trusted.gpg
             qemu_bin_arch: arm
           - arch: arm64
-            repo: https://deb.debian.org/debian
-            keyring: /usr/share/keyrings/debian-archive-keyring.gpg
             qemu_bin_arch: aarch64
 
     steps:
@@ -60,7 +56,7 @@ jobs:
         sudo mkdir -p ~/chroot/var/tmp
         sudo mv /var/tmp/*NDI* ~/chroot/var/tmp
         wget http://archive.raspbian.org/raspbian.public.key -O - | sudo apt-key add -q
-        sudo qemu-debootstrap --keyring=${{ matrix.keyring }} --arch ${{ matrix.arch }} bullseye ~/chroot ${{ matrix.repo }}
+        sudo debootstrap --keyring=/etc/apt/trusted.gpg --arch ${{ matrix.arch }} bullseye ~/chroot http://raspbian.raspberrypi.org/raspbian/
         sudo cp -r $GITHUB_WORKSPACE/.github ~/chroot
         sudo cp /usr/bin/qemu-${{ matrix.qemu_bin_arch }}-static ~/chroot/usr/bin
         sudo chroot ~/chroot /.github/scripts/Linux/arm/bootstrap.sh ${{ matrix.arch }}