ci: move centos8 to centos stream CentOS 8 is no longer supported; use CentOS stream.
diff --git a/ci/docker/centos8 b/ci/docker/centos8
index 823a465..81f0c3c 100644
--- a/ci/docker/centos8
+++ b/ci/docker/centos8
@@ -1,6 +1,10 @@
ARG BASE=centos:8
-FROM ${BASE} AS yum
+FROM ${BASE} AS stream
+RUN dnf -y --disablerepo '*' --enablerepo=extras swap centos-linux-repos centos-stream-repos && \
+ dnf -y distro-sync
+
+FROM stream AS yum
RUN yum install -y \
which \
bzip2 \