plugins.kick: fix API queries

[bastimeyer]

Fixes #6018

@DCxDESIGN please check
https://github.com/streamlink/streamlink/blob/master/CONTRIBUTING.md#pull-request-feedback

My guess is that the Authorization token is tied to some HTTP headers, and since the Accept-Language header is different from the request where the token was obtained, the API returned 403. But that's just my guess, so please check if this PR fixes the issue.

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$ ./script/test-plugin-urls.py kick -r LIVE_CHANNEL xqc -r VIDEO_ID 8bc87173-22f7-493e-a6a8-1ef5d11be9fa -r CLIP_CHANNEL admiralbulldog -r CLIP_ID clip_01HSNHF69RPPR9JX0VQ6WM2YVC
:: Finding streams for URL: https://kick.com/admiralbulldog?clip=clip_01HSNHF69RPPR9JX0VQ6WM2YVC
:: Found streams: clip, worst, best
:: Finding streams for URL: https://kick.com/video/8bc87173-22f7-493e-a6a8-1ef5d11be9fa
:: Found streams: 160p, 360p, 480p, 720p60, 1080p60, worst, best
:: Finding streams for URL: https://kick.com/xqc
:: Found streams: 160p, 360p, 480p, 720p60, 1080p60, worst, best