Dns over http2 5773 v5

[catenacyber]

Link to redmine ticket:
https://redmine.openinfosecfoundation.org/issues/5773

Describe changes:

• analyze DNS over HTTP2

SV_BRANCH=pr/1573

OISF/suricata-verify#1573

Draft to get feedback about approach...
Leaving comments on the code for specific questions

#10123 with clippy fixes

TODO :

• Fix dns json schema and logging first (that is https://redmine.openinfosecfoundation.org/issues/6281 )
• Use config for dns logging...
• Merge Output alert applayer v17.1 #9870 so as not to have a short-lived output-json-doh2.c

Functionnaly, in terms of output :

• The flow will have doh2 as app_proto (and http2 as app_proto_orig)
• There are doh2 events that have both http2 and dns fields. dns logging is done like alerts, not like dns events...
• DNS and HTTP and HTTP2 signatures work on DOH2
• Signatures can be DOH2 specific. These signatures can combine http, http2 and dns keywords.
• DNS Frames do not work on DoH2

Memory management

• a HTTP2 tx can own 2 DNS tx (one to client, one to server)
• a HTTP2 tx stores the streamed DNS response content until it is complete before parsing it (limiting to U16_MAX bytes)

API

• There is a new DOH2 app-layer protocol which resorts to HTTP2 for most of the things
• HTTP2 parsing discovering DOH2 changes the app_proto to DOH2, doh2 can be enabled or disabled in suricata.yaml config
• There are more alproto "comparison" functions
• Every DNS keyword needs to check the flow alproto to change the transaction
• Every DNS/HTTP keyword is automatically registered for DOH2 (hacking DetectAppLayerMpmRegister2...)

[catenacyber]

Force push to get CI greener (dtx.id = 1; to avoid rust underflow in dns logging)

[codecov]

Codecov Report

Attention: 48 lines in your changes are missing coverage. Please review.

Comparison is base (a37fa62) 82.15% compared to head (cf63420) 82.06%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #10125      +/-   ##
==========================================
- Coverage   82.15%   82.06%   -0.09%     
==========================================
  Files         974      975       +1     
  Lines      271925   272203     +278     
==========================================
- Hits       223394   223385       -9     
- Misses      48531    48818     +287     

Flag	Coverage Δ
fuzzcorpus	62.73% <57.17%> (-0.17%)	⬇️
suricata-verify	61.44% <80.44%> (-0.01%)	⬇️
unittests	62.80% <30.19%> (-0.04%)	⬇️

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

[suricata-qa]

Information: QA ran without warnings.

Pipeline 17358

[suricata-qa]

Information: QA ran without warnings.

Pipeline 17359

[suricata-qa]

Information: QA ran without warnings.

Pipeline 17360

[catenacyber]

Replaced by #10174