Update libnettle to recently relesed 3.10.1

[DL6ER]

What does this implement/fix?

Somehow we missed to update to 3.10 in between. The changelog is rather long and there is nothing outstanding for us, most work seems to have gone into the testing suite, e.g., related to side-channel testing in the ECC code.

Highlights from the CHANGELOG:

• Don't reorder the subkeys during aes_invert
• Optimize powerpc64 aes decrypt. Speedup of 80%-100%, depending on key size, when benchmarked on Power 10
• Fix CPU feature detection on Apple M1
• RSA-OAEP support
• Support elf_aux_info (OpenBSD and FreeBSD)

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Related issue or feature (if applicable): N/A

Pull request in docs with documentation (if applicable): N/A

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[yubiuser]

One test is failing, but outside of code affected by this PR

[DL6ER]

Yes, I have already seen it. It is a rather often happening issue with GHA-hosted runners. On the FTL repo we don't see it very often due to the three automatic action retries but we don't have something like this here. I can only restart the failing test once all running ones are finished.