chore: add should_override_forkchoice_update spec test check

[nflaig]

Motivation

We are not running should_override_forkchoice_update spec tests from ethereum/consensus-specs#3034 as checks are missing.

Description

• add should_override_forkchoice_update spec test check
• pass secFromSlot to shouldOverrideForkChoiceUpdate as it's required now
• add proposal_slot == current_slot and proposing_on_time to shouldOverrideForkChoiceUpdate to pass spec tests

[codecov]

Codecov Report

Attention: Patch coverage is 52.17391% with 11 lines in your changes missing coverage. Please review.

Project coverage is 55.66%. Comparing base (2f2eaf1) to head (bba4b04).
Report is 1 commits behind head on nc/proposer-boost-reorg-fix-1.

Additional details and impacted files

@@                        Coverage Diff                        @@
##           nc/proposer-boost-reorg-fix-1    #8020      +/-   ##
=================================================================
- Coverage                          55.71%   55.66%   -0.06%     
=================================================================
  Files                                834      834              
  Lines                              59218    59542     +324     
  Branches                            4571     4594      +23     
=================================================================
+ Hits                               32995    33143     +148     
- Misses                             26156    26331     +175     
- Partials                              67       68       +1     

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