Http2 header 5780 v3

[catenacyber]

Link to redmine ticket:
https://redmine.openinfosecfoundation.org/issues/5780

Describe changes:

• http2: rename http2.header to http.request_header and http.response_header as it is confusing with http.header

Replaces #8615 with added commit to add the HTTP1 functionality

I have lots of questions...

Should this be one commit ?
Even if it is renaming + adding HTTP1 functionality

Did I get right the use of HttpHeaderBuffer ?

Is src/detect-http-header.c the right file do put it ?

I removed the validation callback as it is HTTP2-specific
Should we just remove the escaping being done in HTTP2, and not be able to match differently on a HTTP2 header name having comma in it like x: y versus a HTTP2 header having x as its name and y as its value ?

How do we merger with S-V having some test with rules with the keyword being deprecated ?

Do we keep the deprecated keyword in 6 ?

suricata-verify-pr: 1153
OISF/suricata-verify#1153

[catenacyber]

Commit-check pointing me to do only one bug commit ...

[codecov]

Codecov Report

Merging #8621 (dd001e2) into master (416a780) will increase coverage by 0.14%.
The diff coverage is 53.36%.

❗ Current head dd001e2 differs from pull request most recent head e538a98. Consider uploading reports for the commit e538a98 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8621      +/-   ##
==========================================
+ Coverage   81.76%   81.90%   +0.14%     
==========================================
  Files         968      968              
  Lines      278546   278621      +75     
==========================================
+ Hits       227751   228218     +467     
+ Misses      50795    50403     -392     

Flag	Coverage Δ
fuzzcorpus	64.34% <18.26%> (+0.26%)	⬆️
suricata-verify	59.67% <53.36%> (-0.03%)	⬇️
unittests	63.26% <18.26%> (-0.02%)	⬇️

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

[suricata-qa]

Information: QA ran without warnings.

Pipeline 12816

[suricata-qa]

WARNING:

field	baseline	test	%
	SURI_TLPW1_stats_chk
.tcp.rst	113267	145129	128.13%
	TREX_GENERIC_stats_chk
.capture.kernel_drops	0	56	0.00

Pipeline 12817

[catenacyber]

Replaced by #8775