Pin microshift build for openshift-4.17 4.17.4 (#5632)

Created by job run https://art-jenkins.apps.prod-stable-spoke1-dc-iad2.itup.redhat.com/job/aos-cd-builds/job/build%252Fbuild-microshift/1343

Co-authored-by: AOS Automation Release Team <noreply@redhat.com>

releases.yml

@@ -49,7 +49,12 @@ releases:
             is:
               nvr: ose-installer-artifacts-container-v4.17.0-202411060807.p0.g6339911.assembly.stream.el9
           why: Query from assembly basis event failed to replicate referenced nightly content exactly. Pinning to replicate.
-        rpms: []
+        rpms:
+        - distgit_key: microshift
+          why: Pin microshift to assembly
+          metadata:
+            is:
+              el9: microshift-4.17.4-202411070923.p0.g06faf6b.assembly.4.17.4.el9
       rhcos:
         rhel-coreos:
           images: