chore: deps(updatecli/policy): bump "ghcr.io/elastic/oblt-updatecli-p…

…... (#5589)

... olicies/ironbank/templates" Updatecli version policy

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updatecli-compose.yaml

@@ -2,7 +2,7 @@
 # https://www.updatecli.io/docs/core/compose/
 policies:
   - name: Handle ironbank bumps
-    policy: ghcr.io/elastic/oblt-updatecli-policies/ironbank/templates:0.3.0@sha256:b0c841d8fb294e6b58359462afbc83070dca375ac5dd0c5216c8926872a98bb1
+    policy: ghcr.io/elastic/oblt-updatecli-policies/ironbank/templates:0.5.2@sha256:6a237aea2c621a675d644dd51580bd3c0cb4d48591f54f5ba1c2ba88240fa08b
     values:
       - .ci/updatecli/values.d/scm.yml
       - .ci/updatecli/values.d/ironbank.yml