strace: rebuild against newer libunwind

[meator]

This fixes the

strace: Symbol `_UPT_accessors' has different size in shared object, consider re-linking

warning. I don't know what causes this warning. A proper solution that would prevent this warning from appearing again in the future would probably be better.

Testing the changes

• I tested the changes in this PR: YES

[icp1994]

That's libunwind

[oreo639]

The message is coming from glibc: https://github.com/bminor/glibc/blob/d370155b9ab73d0c45bf968b7a9c823f4697a505/sysdeps/x86_64/dl-machine.h#L460

_UPD_accessors is a variable defined by libunwind that gets externed and the struct size was changed here: libunwind/libunwind@d7e5926

The only use of _UPD_accessors in strace is passing its pointer back in to libunwind so afaict it shouldn't cause any noticeable issues in this instance: https://github.com/strace/strace/blob/8c480270653da45370fe44871dfdf18647bb0951/src/unwind-libunwind.c#L24

That being said, it should still be rebuilt as this is an ABI break.

Update the commit message to include the reason for the revbump and include the libunwind commit in the commit description.