[6.0] a9a6d98a2 Use host network in docker build instance

[Martin Blix Grydeland]

commit a9a6d98a2b1b6d4e52d5e59de7ee00145c30ea1e
Author: Martin Blix Grydeland <martin at varnish-software.com>
Date:   Mon Dec 5 10:58:05 2022 -0700

    Use host network in docker build instance

diff --git a/.circleci/config.yml b/.circleci/config.yml
index d4a1970f4..709916811 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -234,7 +234,7 @@ jobs:
           command: |
             docker create --name workspace -v /workspace << parameters.prefix >><< parameters.dist >>:<< parameters.release >> /bin/true
             docker cp /workspace workspace:/
-            docker run --volumes-from workspace -w /workspace << parameters.prefix >><< parameters.dist >>:<< parameters.release >> sh -c '
+            docker run --volumes-from workspace -w /workspace --network host << parameters.prefix >><< parameters.dist >>:<< parameters.release >> sh -c '
             case "<< parameters.dist >>" in
             centos|almalinux|fedora)
                 yum groupinstall -y "Development Tools"