How to measure/track number of PRs per month, and also max number of concurrently building PRs overall?

[lance-verkada]

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What tools can I use on GitHub to track how many PRs we create per month, as well as how many PRs we have building concurrently (in parallel), at once?

The parallel execution one is my main goal. Each of my GitHub PRs basically takes 20 minutes to fully build/complete, about 5-10 minutes of that is tests running. I need to know basically how many PRs are building at the same time (we have many engineers creating PRs throughout the day, and each PR might rebuild 1-n times before it is merged, so), because these end-to-end tests are acting against the same test database / app, and in our case, the tests need to not interfere with any state in the app, so we need to basically create 1 org per PR / test run (and some other data, such as allocating multiple physical devices per PR / test run), so we HAVE to know how many max PRs are concurrently building at once. Not sure how to do that exactly.

Are there any "GitHub action projects" or plugins we can install or anything? Or find this info in some REST API? Or how should we approach it?