nfs: optionally parse nfs3 read attr-follows

[catenacyber]

Link to ticket: https://redmine.openinfosecfoundation.org/issues/8750

Describe changes:

• nfs: optionally parse nfs3 read attr-follows

SV_BRANCH=OISF/suricata-verify#3309

Was already staged in gitlab, making it public since it is low severity

[suricata-qa]

Information: QA ran without warnings.

Pipeline = 33270

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.03%. Comparing base (acd9d3a) to head (e83ac55).

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #16095      +/-   ##
==========================================
- Coverage   83.05%   83.03%   -0.03%     
==========================================
  Files        1004     1004              
  Lines      277359   277360       +1     
==========================================
- Hits       230370   230292      -78     
- Misses      46989    47068      +79     

Flag	Coverage Δ
fuzzcorpus	61.51% <100.00%> (-0.03%)	⬇️
livemode	18.42% <0.00%> (-0.17%)	⬇️
netns	22.84% <0.00%> (-0.07%)	⬇️
pcap	45.43% <100.00%> (+0.01%)	⬆️
suricata-verify	67.11% <100.00%> (-0.04%)	⬇️
unittests	58.52% <100.00%> (+<0.01%)	⬆️

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[victorjulien]

Merged in #16099, thanks!