Backport of Docs: VAULT_DISABLE_REDIRECTS added further clarity into release/1.17.x

[hc-github-team-secure-vault-core]

Backport

This PR is auto-generated from #27256 to be assessed for backporting due to the inclusion of the label backport/1.17.x.

The below text is copied from the body of the original PR.

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Added limit to HTTP redirects - where the current text does not explicitly call out that only a single redirect will be followed.

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Overview of commits

• ef1de1a9bdfe2c98245ef1d327d04d707e5baa1a