[WIP] Fix round robin scheme syntax in create-agentic-workflow.md

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

Original prompt

Fix the round robin scheme prompt in create-agentic-workflow.md to use correct syntax.

• cache -> cache-memory
• the authoring agent should decide the data format and update scheme to implement the scheme

Custom agent used: ci-cleaner
Tidies up the repository CI state by formatting sources, running linters, fixing issues, running tests, and recompiling workflows

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