restore private networks

I'm not sure why it is used since we don't use the private network
but Digital Ocean don't permit to disable the private network anyway

Author: olethanh

.github/workflows/build-deb-package.yml

@@ -168,11 +168,11 @@ jobs:
           doctl compute droplet create \
           --image ${{ matrix.os_config.os_image }} \
           --size c-4 \
+          --vpc-uuid 5976b7bd-4417-49e8-8522-672aaa920c30
           --region ams3 \
           --enable-ipv6 \
           --ssh-keys ab:2b:25:16:46:6f:25:d0:80:63:e5:be:67:04:cb:64 \
           aleph-vm-ci-${{ matrix.os_config.alias }}-${{ matrix.check_vm.alias }}
-          # --vpc-uuid 5976b7bd-4417-49e8-8522-672aaa920c30
 
       - uses: actions/download-artifact@v4
         name: "Download the package from artifacts."
@@ -310,10 +310,10 @@ jobs:
           --image debian-12-x64 \
           --size c-4 \
           --region ams3 \
+          --vpc-uuid 5976b7bd-4417-49e8-8522-672aaa920c30 \
           --enable-ipv6 \
           --ssh-keys ab:2b:25:16:46:6f:25:d0:80:63:e5:be:67:04:cb:64 \
           aleph-vm-ci-runtime
-      #  --vpc-uuid 5976b7bd-4417-49e8-8522-672aaa920c30 \
 
       # We can probably reuse the previous artefact.
       - name: "Build custom runtime"