debug: fix list-x command line options with debug

[catenacyber]

Link to redmine ticket:
https://redmine.openinfosecfoundation.org/issues/6089

Steps to reproduce :

• build with ./src/tests/fuzz/oss-fuzz-configure.sh
• run ./src/suricata --list-keywords or ./src/suricata --list-app-layer-protos

This fails with stack trace

Assertion failed: (!((g_engine_mode == ENGINE_MODE_UNKNOWN))), function EngineModeIsIPS, file suricata.c, line 224.
Abort trap: 6
    #2 0x10b15e236 in EngineModeIsIPS suricata.c:224
    #3 0x10b1a76c3 in ExceptionPolicyParse util-exception-policy.c:215
    #4 0x10ae3aff1 in AppLayerParserRegisterProtocolParsers app-layer-parser.c:1743
    #5 0x10ad79df8 in AppLayerSetup app-layer.c:973
    #6 0x10b1faffa in ListKeywords util-running-modes.c:37
    #7 0x10b16615c in SuricataMain suricata.c:2918

This hinders oss-fuzz which relies on these commands

Describe changes:

• Adds a new engine mode to prevent the assertion to trigger

Another fix could just be to EngineModeSetIDS in ListKeywords

[codecov]

Codecov Report

Merging #8909 (9f1de53) into master (ebe0a7b) will increase coverage by 0.02%.
The diff coverage is 0.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8909      +/-   ##
==========================================
+ Coverage   82.30%   82.32%   +0.02%     
==========================================
  Files         969      969              
  Lines      273335   273339       +4     
==========================================
+ Hits       224961   225035      +74     
+ Misses      48374    48304      -70     

Flag	Coverage Δ
fuzzcorpus	64.72% <0.00%> (+0.07%)	⬆️
suricata-verify	60.45% <0.00%> (-0.01%)	⬇️
unittests	62.94% <0.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

[suricata-qa]

Information: QA ran without warnings.

Pipeline 13908

[catenacyber]

Replaced by #8921