Use nitor-vault 2.2+ version

[Esgrove]

Update nitor-vault package to 2.2+, which has the new Rust vault library available for use as a Python library.

"nitor-vault~=2.2": this means "compatible version with 2.2" so any 2.X.X version but not 3.X

All other vault usages here should be good, but there are two of these:

vault = Vault(**enc_conf)

and it is not possible to see from the code what that enc_conf contains so this might break if it relies on vault_iam_id, vault_iam_secret or vault_init=True 🤷🏻‍♂️

• Use nitor-vault 2.2.0+
• Some code formatting for better readability while checking for vault usages in the code
• Update faster reg compile script now that Xcode comes with Clang 16
• Update pyproject.toml config