We are just using tools modules (plural) to manage installing go
binaries with binned versions easily.
We are NOT trying to patch transitive dependencies in those tools,
versus just updating those tools themselves.
Add a helper script to update them as intended, and add and AGENTS.md to
tell agents to use the script.
- [x] Tests pass
- [x] Appropriate changes to documentation are included in the PR
Benjamin Elder
379e7e677d