Heap dump pair

Mon, 26 Aug 2024 00:00:00 -0500

Joined by [byroot](https://github.com/byroot) to investigate the possible
[memory leak](https://github.com/Shopify/ruby/issues/556) in Lobsters.
We came to the hypothesis that it's actually memory fragmentation, and
reviewed and merged his several related PRs.
I also ran a user query to give an example of that process.