I think i made something neat, not sure how to turn it into a github action though. I did a cargo-size action that triggers on merge, and stores the size in the git notes
```
jacob@j2:~/z/embassy-ci (main)$ git fetch origin refs/notes/*:refs/notes/*
jacob@j2:~/z/embassy-ci (main)$ git show HEAD
commit c93918492982581e3f0d0f52498f167f0114b8bd (HEAD -> main, origin/main)
Merge: a02fb51 7e6c5aa
Author: Jacob Rosenthal <jacobrosenthal@gmail.com>
Date:   Tue Mar 12 14:10:25 2024 -0700

    Merge pull request #2 from jacobrosenthal/custom-action
    
    Custom action

Notes:
       text        data     bss     dec     hex filename
      12676         112   34260   47048    b7c8 blinky

jacob@j2:~/z/embassy-ci (main)$ 
```

Be cool to be able to see back through commits how size or other bloat aspects changed.

Then of course another action that does the size on PR changes, and Pull requests the new size, AND if there was a note with old size in the commits its merged on top of, you get the old/new/diff in the comment