fix(minor): more aggressive state witness orphan pool final block height check

[pugachAG]

It is safe to also drop state witness with height_created equal to the height of the last final block.
This is mostly to stay consistent with the check introduced in #11081.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.05%. Comparing base (6d17fa9) to head (f9174c1).

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #11097       +/-   ##
===========================================
+ Coverage        0   71.05%   +71.05%     
===========================================
  Files           0      764      +764     
  Lines           0   153237   +153237     
  Branches        0   153237   +153237     
===========================================
+ Hits            0   108883   +108883     
- Misses          0    39914    +39914     
- Partials        0     4440     +4440     

Flag	Coverage Δ
backward-compatibility	0.24% <0.00%> (?)
db-migration	0.24% <0.00%> (?)
genesis-check	1.43% <0.00%> (?)
integration-tests	36.79% <0.00%> (?)
linux	69.47% <100.00%> (?)
linux-nightly	70.52% <100.00%> (?)
macos	54.24% <100.00%> (?)
pytests	1.66% <0.00%> (?)
sanity-checks	1.45% <0.00%> (?)
unittests	66.74% <100.00%> (?)
upgradability	0.29% <0.00%> (?)

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