chore(deps): update roadiehq/backstage-entity-validator action to v0.6.0 (#1502)

Author: renovate[bot]

.github/workflows/backstage.yml

@@ -17,6 +17,6 @@ jobs:
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
       - name: check catalog-info.yaml file
-        uses: RoadieHQ/backstage-entity-validator@d39db2335a810aed3175c5ba9b86b89b7c7286c1 # v0.5.0
+        uses: RoadieHQ/backstage-entity-validator@421bdcd5e3e400ef1913eb16d4f9dacdc5016801 # v0.6.0
         with:
           path: "./catalog-info.yaml"