Bump bitflags to 2.4.2

[baloo]

This removes duplicate dependencies in the tree of crates depending on pcsc.

Sadly this also raises the MSRV to 1.56. I would tend to believe this is acceptable.

[bluetech]

Unfortunately it can't be done because it's a breaking change.

[baloo]

and no plan to introduce a new major release?

[bluetech]

I don't think it's worth it just for that...

…

On Tue, Mar 12, 2024, at 18:07, Arthur Gautier wrote: and no plan to introduce a new major release? — Reply to this email directly, view it on GitHub <#49 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAJKW7Q3XN2T3AE7ZO37VULYX4R3JAVCNFSM6AAAAABEOWWOT6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTSOJSGAYTQNZYGM>. You are receiving this because you commented.Message ID: ***@***.***>

[baloo]

Well, this is the only dependency - of a fairly large tree - which is duplicated.

Let me know if you reconsider in the future.