ci: rm links checks from required

[Borda]

What does this PR do?

seems that the Python download badge is quite sensitive, and as we do not have link in docs as required, not sure why keep readme links as required...

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cc @Borda @carmocca

[github-actions]

⚡ Required checks status: All passing 🟢

No groups match the files changed in this PR.

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Thank you for your contribution! 💜

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