detect-lua: add tests

[samfajobi]

Task: #6142

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[inashivb]

I do not think this syntax is correct. See: https://docs.suricata.io/en/suricata-8.0.2/lua/libs/flowint.html#flowint-library
Also, check out: tests/lua/lua-flowintlib

[samfajobi]

I do not think this syntax is correct. See: https://docs.suricata.io/en/suricata-8.0.2/lua/libs/flowint.html#flowint-library Also, check out: tests/lua/lua-flowintlib

Alright, I will check it out.

[samfajobi]

I do not think this syntax is correct. See: https://docs.suricata.io/en/suricata-8.0.2/lua/libs/flowint.html#flowint-library Also, check out: tests/lua/lua-flowintlib

Thank you very much for this @inashivb , this works now, apparently the function that was used earlier works with the old-style Lua detection scripts, I had to rewrite them all, I would raise a PR on this soon.