[llvm] [Github] Update requirements_formatting.txt (PR #181184)

[Aiden Grossman via llvm-commits]

boomanaiden154 wrote:

> although I'm not sure how to control the version of transitive dependencies. What if e.g. urllib3=2.6.3 became vulnerable. Looks like the clearest way would be to add something like constraints_formatting.txt with the content like:

We should be able to just remove the lockfile (or delete the lockfile altogether) and then regenerate it/parts of it.

https://github.com/llvm/llvm-project/pull/181184