[BUG] request_correlation_header not normalized

[kivra-kenand]

Describe the bug
Setting request_correlation_header with uppercase characters causes it to never match

If this is a complex bug
sys.config:

...
 #{request_correlation_header => <<"custom-X-id">>
...

SUITE:

Headers = #{headers => #{"content-type" => "application/json", <<"custom-X-id">> => <<"foo">>}},
#{status := {201, _}, headers := Res} = jhn_shttpc:post(["http://custom_url"], <<"[]">>, Headers),
?assertEqual(<<"foo">>, maps:get(<<"x-correlation-id">>, Res)).

The code here will never match custom-X-id as it has been normalized to custom-x-id.

Expected behavior
request_correlation_header should be normalized before matching. So that request_correlation_header => <<"cUsToM-X-iD">> would match CuStOm-x-Id in the headers.

Desktop (please complete the following information):

• OS: N/A
• Erlang version: 27
• Nova version: v0.10.2

[burbas]

Thanks for reporting the issue. It's been fixed with the pull request mentioned above.