fuzz/conf: bail out on long sequence of scalars

[catenacyber]

Link to ticket: https://redmine.openinfosecfoundation.org/issues/
https://redmine.openinfosecfoundation.org/issues/8107

Describe changes:

• backport of fuzz/conf: bail out on long sequence of scalars #14316 clean cherry-pick

[codecov]

Codecov Report

❌ Patch coverage is 87.50000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 83.59%. Comparing base (dc2faaa) to head (da8e37b).

Additional details and impacted files

@@              Coverage Diff               @@
##           main-8.0.x   #14340      +/-   ##
==============================================
+ Coverage       83.58%   83.59%   +0.01%     
==============================================
  Files            1011     1011              
  Lines          265661   265669       +8     
==============================================
+ Hits           222040   222087      +47     
+ Misses          43621    43582      -39     

Flag	Coverage Δ
fuzzcorpus	63.39% <87.50%> (+<0.01%)	⬆️
livemode	18.84% <ø> (+0.14%)	⬆️
pcap	44.53% <ø> (+0.02%)	⬆️
suricata-verify	64.80% <ø> (+0.01%)	⬆️
unittests	58.93% <ø> (ø)

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[suricata-qa]

Information: QA ran without warnings.

Pipeline = 28471