Add weekly/monthly stats about progress

[qarmin]

https://blog.antoyo.xyz/rustc_codegen_gcc-progress-report-16 and other rustc_codegen_gcc reports shows stats how big progress happened since last report.

I think that such stats will help user understand how big is progress of app.

Category	Last Month	This Month	Delta
Passed	4787	4793	+6
Failed	52	46	-6

[kdy1]

I'm already doing it, just like https://stc.dudy.dev/blog/this-week-in-stc/week-5

[sunrabbit123]

Since this is an answered question, we'll close the session.