feat(resolvers): Add the session and cookie identity resolvers

[ollieread]

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[codecov]

Codecov Report

Attention: Patch coverage is 95.37037% with 5 lines in your changes missing coverage. Please review.

Project coverage is 85.59%. Comparing base (dcf982c) to head (78f5060).
Report is 8 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/Support/DefaultTenancy.php	44.44%	5 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main      #28      +/-   ##
============================================
+ Coverage     83.40%   85.59%   +2.19%     
- Complexity      185      209      +24     
============================================
  Files            27       30       +3     
  Lines           500      576      +76     
============================================
+ Hits            417      493      +76     
  Misses           83       83              

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