detect/sip: add sticky buffers to match headers v4

[glongo]

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• [x] I have read the contributing guide lines at https://docs.suricata.io/en/latest/devguide/contributing/contribution-process.html
• [x] I have signed the Open Information Security Foundation contribution agreement at https://suricata.io/about/contribution-agreement/ (note: this is only required once)
• [x] I have updated the user guide (in doc/userguide/) to reflect the changes made (if applicable)
• [x] I have created a ticket at https://redmine.openinfosecfoundation.org/projects/suricata/issues (if applicable)

Link to ticket: https://redmine.openinfosecfoundation.org/issues/ https://redmine.openinfosecfoundation.org/issues/6374

Describe changes:

• Store multiple values for a single header
• Header name in compact form is extended into long form

SV_BRANCH=https://github.com/OISF/suricata-verify/pull/1926