Fix ci check examples

[martintomazic]

Fixes existing CI issue:

run make-examples

....

Running network-show/id-entity.in:
  /Users/runner/work/cli/cli/oasis network show xQN6ffLSdc51EfEQ2BzltK1iWYAw6Y1CkBAbFzlhhEQ= --config /tmp/cli_examples/network-show/cli.toml 
Error: could not get a node: registry: no such node
make: *** [examples/network-show/id-entity.out] Error 1
Error: Process completed with exit code 2.

E.g. see https://github.com/oasisprotocol/cli/actions/runs/28896146091/job/85721038314?pr=705

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[peternose]

I think this is not the right solution for the mentioned CI problem. You should investigate why the test fails and fix it, instead of changing the function.