adapt tx pool on execution to include info from last execution results

[ssd04]

Reasoning behind the pull request

• TxPool state has to be updated on CommitBlock based on last execution results
• rootHash has to be also set based on last execution results info

Proposed changes

• Updated OnExecuted method on TxPool to receive also rootHash, which is selected based on Supernova activation

Testing procedure

• With the feat branch

Pre-requisites

Based on the Contributing Guidelines the PR author and the reviewers must check the following requirements are met:

• was the PR targeted to the correct branch?
• if this is a larger feature that probably needs more than one PR, is there a feat branch created?
• if this is a feat branch merging, do all satellite projects have a proper tag inside go.mod?

[codecov]

Codecov Report

❌ Patch coverage is 77.77778% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 75.67%. Comparing base (a4dbb07) to head (c312b55).
⚠️ Report is 4 commits behind head on feat/supernova-async-exec.

Files with missing lines	Patch %	Lines
process/block/shardblock.go	71.42%	7 Missing and 3 partials ⚠️

Additional details and impacted files

@@                    Coverage Diff                     @@
##           feat/supernova-async-exec    #7327   +/-   ##
==========================================================
  Coverage                      75.66%   75.67%           
==========================================================
  Files                            860      860           
  Lines                         141687   141718   +31     
==========================================================
+ Hits                          107212   107242   +30     
  Misses                         28530    28530           
- Partials                        5945     5946    +1     

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