Foreman expects LDAP server to follow RFC2307

[asteflova]

What changes are you introducing?

The same change as in https://github.com/theforeman/foreman-documentation/pull/3277, but for branches 3.10 and earlier.

Why are you introducing these changes? (Explanation, links to references, issues, etc.)

N/A

Anything else to add? (Considerations, potential downsides, alternative solutions you have explored, etc.)

N/A

Checklists

• [x] I am okay with my commits getting squashed when you merge this PR.
• [x] I am familiar with the contributing guidelines.

Please cherry-pick my commits into:

• [ ] Foreman 3.12/Katello 4.14 (Satellite 6.16)
• [ ] Foreman 3.11/Katello 4.13
• [x] Foreman 3.10/Katello 4.12
• [x] Foreman 3.9/Katello 4.11 (Satellite 6.15; orcharhino 6.8/6.9/6.10)
• [x] Foreman 3.8/Katello 4.10
• [x] Foreman 3.7/Katello 4.9 (Satellite 6.14)
• [x] Foreman 3.6/Katello 4.8
• [x] Foreman 3.5/Katello 4.7 (Satellite 6.13; orcharhino 6.6/6.7)
• We do not accept PRs for Foreman older than 3.5.

[github-actions[bot]]

The PR preview for 30d9762d71d5fdb40a56011fdf01e1f2719392a3 is available at theforeman-foreman-documentation-preview-pr-3287.surge.sh

The following output files are affected by this PR:

• Installing_Server/index-katello.html
• Installing_Server/index-orcharhino.html
• Installing_Server/index-satellite.html

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show diff as HTML

[asteflova]

The update itself was tech reviewed in https://github.com/theforeman/foreman-documentation/pull/3277 so I'm setting tech review done right away.

@maximiliankolb Can you please take a quick look here? Is it okay to add the requirement like this for earlier versions?

[asteflova]

Merged to "3.10" and cherry-picked:

9595f568aa..4dc8a8393f 3.9 -> 3.9 4dfca9f38f..674c594683 3.8 -> 3.8 5584cf797b..72477d8629 3.7 -> 3.7 522cc21173..241ef1d8c1 3.6 -> 3.6 1b6db56f2f..ec9440720a 3.5 -> 3.5