Upgrade Ruma (phase 2)

[zecakeh]

Follow-up to #5337.

This is mainly about the added JsonCastable bound on the Raw API.

Split into commits by theme for easier review, however they should be squashed together.

[codecov]

Codecov Report

Attention: Patch coverage is 76.74419% with 30 lines in your changes missing coverage. Please review.

Project coverage is 88.86%. Comparing base (37626b5) to head (15f36cf).
Report is 1 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
crates/matrix-sdk-base/src/store/memory_store.rs	33.33%	11 Missing and 1 partial ⚠️
crates/matrix-sdk/src/event_handler/mod.rs	20.00%	0 Missing and 4 partials ⚠️
crates/matrix-sdk/src/room/mod.rs	50.00%	2 Missing and 2 partials ⚠️
crates/matrix-sdk-base/src/store/traits.rs	60.00%	0 Missing and 2 partials ⚠️
...es/matrix-sdk-common/src/deserialized_responses.rs	88.88%	1 Missing ⚠️
crates/matrix-sdk-crypto/src/gossiping/machine.rs	0.00%	0 Missing and 1 partial ⚠️
crates/matrix-sdk-crypto/src/machine/mod.rs	50.00%	0 Missing and 1 partial ⚠️
...rates/matrix-sdk-crypto/src/types/one_time_keys.rs	0.00%	0 Missing and 1 partial ⚠️
...-sdk/src/encryption/secret_storage/secret_store.rs	66.66%	0 Missing and 1 partial ⚠️
crates/matrix-sdk/src/event_cache/room/mod.rs	0.00%	0 Missing and 1 partial ⚠️
... and 2 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5433      +/-   ##
==========================================
+ Coverage   88.85%   88.86%   +0.01%     
==========================================
  Files         333      333              
  Lines       91356    91374      +18     
  Branches    91356    91374      +18     
==========================================
+ Hits        81172    81202      +30     
+ Misses       6360     6348      -12     
  Partials     3824     3824              

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[bnjbvr]

lgtm, thanks!

[poljar]

Thanks, looks good.