Bump ruma

[zecakeh]

This handles a couple of new breaking changes upstream.

• I've documented the public API Changes in the appropriate CHANGELOG.md files.
• This PR was made with the help of AI.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.87%. Comparing base (a65fec3) to head (4eb3ec7).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6414      +/-   ##
==========================================
- Coverage   89.87%   89.87%   -0.01%     
==========================================
  Files         378      378              
  Lines      103445   103436       -9     
  Branches   103445   103436       -9     
==========================================
- Hits        92973    92959      -14     
- Misses       6902     6906       +4     
- Partials     3570     3571       +1     

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[codspeed-hq]

Merging this PR will improve performance by 48.34%

⚡ 1 improved benchmark
✅ 49 untouched benchmarks

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
⚡	Simulation	Restore session [memory store]	166.4 ms	112.2 ms	+48.34%

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_{Comparing zecakeh:bump-ruma (4eb3ec7) with main (a65fec3)}