Add premissions and default run env

Author: shaun-nx

.github/workflows/openshift-certification.yml

@@ -8,6 +8,13 @@ on:
         type: string
         default: 'ubuntu-24.04'
 
+defaults:
+  run:
+    shell: bash
+
+permissions:
+  contents: read
+
 jobs:
   preflight:
     runs-on: ${{ inputs.runner }}