refactor: Upgrade uniffi to the latest upstream

[jmartinesp]

This is needed to fix an issue with the Kotlin bindings crashing the unit tests that reference any classes from the FFI bindings, even if they're instantiated with the NoHandle value to ensure it doesn't use the actual native code.

• Public API changes documented in changelogs (optional)

Signed-off-by:

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.56%. Comparing base (ae9600e) to head (564ad77).
⚠️ Report is 5 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5929   +/-   ##
=======================================
  Coverage   88.56%   88.56%           
=======================================
  Files         363      363           
  Lines      104838   104838           
  Branches   104838   104838           
=======================================
+ Hits        92853    92855    +2     
+ Misses       7628     7626    -2     
  Partials     4357     4357           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[codspeed-hq]

CodSpeed Performance Report

Merging #5929 will improve performances by 46.52%

_{Comparing misc/upgrade-uniffi-to-latest (564ad77) with main (ae9600e)}

Summary

⚡ 1 improvement
✅ 49 untouched

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
⚡	Restore session [memory store]	400.6 ms	273.4 ms	+46.52%

[jmartinesp]

Merging #5929 will improve performances by 46.62%

[poljar]

Merging #5929 will improve performances by 46.62%

Sometimes it behaves like this, on one of the simplests benchmarks we have. One of these days we need to investigate.

[jmartinesp]

I knew it was too good to be true! (also, there are no bindings involved in the benchmark so... 😅 )

[poljar]

Looks good.