Refactor serialization adapter retrieval by version

[nimakarimipour]

This PR prepares for #1063 by moving the initializeAdapter declaration from FixSerializationConfig to SerializationVersionAdapter. This change ensures that version-specific serializations are handled directly by SerializationVersionAdapter, which will simplify test modifications in #1063.

This transition also aligns with a clearer design, as SerializationVersionAdapter should be responsible for computing the appropriate adapter for each new version. This approach will help us maintain version updates within SerializationVersionAdapter while keeping FixSerializationConfig unchanged.

I'm uncertain if maintaining backward compatibility is necessary in the long term. If it's not needed, we can consider removing it in the future. For now, however, this PR is required to keep #1063 concise.

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 3 lines in your changes missing coverage. Please review.

Project coverage is 87.66%. Comparing base (e9541e3) to head (36930c0).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...ixserialization/adapters/SerializationAdapter.java	40.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #1066   +/-   ##
=========================================
  Coverage     87.65%   87.66%           
  Complexity     2222     2222           
=========================================
  Files            85       86    +1     
  Lines          7269     7271    +2     
  Branches       1436     1436           
=========================================
+ Hits           6372     6374    +2     
  Misses          456      456           
  Partials        441      441           

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