(Oleg Grenrus is) Stepping down as a maintainer of aeson and quickcheck-instances

It is not purely mechanical, the mechanical part is collecting and clustering the public history: issues, PRs, discussions, release notes, labels, timestamps, linked commits, and cross-references. An LLM then turns the nodes into traceable project-memory notes. So instead of “trust this AI summary,” the output should be: here is the likely context, and here are the original issues/PRs/discussions it came from. Also will be making a new discussion with an example.