Exclude known bad build of flexiblas in CS9

As reported in [1] flexiblas-3.0.4-7 is bad and it's making all p-o-i
jobs to fail.

This patch is excluding this build from dnf configuration.

[1] https://bugzilla.redhat.com/show_bug.cgi?id=2058840

Related-Bug: #1962506
Change-Id: Iadb4cc8885de451ffc4aff1b57be824855483beb

playbooks/prepare-node-common.yaml

@@ -109,3 +109,13 @@
         - use_puppetlabs is defined
         - use_puppetlabs|bool
         - ansible_os_family == 'Debian'
+
+    - block:
+      - name: Workaround for lp bug 1962506 (CentOS/RHEL 9)
+        shell:
+          cmd: |
+            dnf config-manager --save --setopt exclude=flexiblas*3.0.4-7*
+        become: true
+      when:
+        - ansible_os_family == 'RedHat'
+        - ansible_distribution_major_version == "9"