style: Use pre-commit tool and add simple config (#2029)

I started with really simple pre-commit hooks and will add more on top.

Important files:
- `.pre-commit-config.yaml` - the config for pre-commit
- `.github/workflows/pre-commit.yml` - runs pre-commit hooks in branches
and `develop`
- `.github/workflows/pre-commit-autoupdate.yml` - autoupdates pre-commit
hooks once in a month

README.md

@@ -18,7 +18,7 @@ Clio offers the full `rippled` API, with the caveat that Clio by default only re
 Clio retrieves data from a designated group of `rippled` nodes instead of connecting to the peer-to-peer network.
 For requests that require access to the peer-to-peer network, such as `fee` or `submit`, Clio automatically forwards the request to a `rippled` node and propagates the response back to the client. To access non-validated data for *any* request, simply add `ledger_index: "current"` to the request, and Clio will forward the request to `rippled`.
 
-> [!NOTE]  
+> [!NOTE]
 > Clio requires access to at least one `rippled` node, which can run on the same machine as Clio or separately.
 
 ## 📚 Learn more about Clio