Allow failure for centos7-aarch64 scans

For the release-1.13 branch, we don't build aarch64 images for centos7.

This means that, depending on the docker version, a docker pull fails if
the platform is specified.

As a simple workaround, we allow failure for this scan step.

Signed-off-by: Evan Lezar <[email protected]>

Author: elezar

.nvidia-ci.yml

@@ -146,6 +146,7 @@ scan-centos7-arm64:
   needs:
     - image-centos7
     - scan-centos7-amd64
+  allow_failure: true
 
 scan-ubuntu20.04-amd64:
   extends: