[CI] issue: HPCINFRA-4050 Replace webrepo address with geoDNS address

Replace webrepo.mtr.labs.mlnx with a geoDNS webrepo.gtm.nvidia.com to fix repository timeout issues.

Signed-off-by: Noam Tsemah <[email protected]>

Author: ntsemah

.ci/dockerfiles/Dockerfile.ol9.4

@@ -6,6 +6,10 @@ ARG _UID=6213
 ARG _GID=101
 ARG _LOGIN=swx-jenkins
 ARG _HOME=/var/home/$_LOGIN
+ARG WEBREPO_URL=webrepo.gtm.nvidia.com
+
+RUN sed -i 's|\$WEBREPO_URL|'"${WEBREPO_URL}"'|g' /etc/yum.repos.d/*.repo && \
+    yum makecache
 
 RUN yum install yum-utils \
  && yum-config-manager --add-repo https://dl.fedoraproject.org/pub/epel/9/Everything/aarch64/ \