chore: Update bitflags dep to 2.0

[nicholasbishop]

No description provided.

[Pat-Lafon]

Happy to see dependencies getting updated though I was a bit surprised when clippy now reports that clap uses two different versions of bitflags:1.3.2, 2.0.2. This isn't bad afaik, just a nuisance.

[epage]

I just noticed that. I'm considering downgrading until all our dependencies are on the new version.

[nicholasbishop]

For reference, the old bitflags version is pulled in like this:

bitflags v1.3.2
└── rustix v0.36.11
    └── is-terminal v0.4.5
        └── clap v4.1.12

The minimum Rust version in rustix is currently 1.48 (thanks Debian), and the minimum Rust version for bitflags 2.0 is 1.56.

[Pat-Lafon]

Would it make sense to warn on clippy::multiple-crate-versions?

[epage]

Unsure what I'm doing wrong but I went back to an old commit and running

$ cargo clippy --all-targets -- -D clippy::multiple-crate-versions

doesn't produce warnings.

In #4781 I am adding cargo-deny but I'm leaving multiple versions as a warnings because of hermit-abi and windows-sys