Archive v8.2/v3.10.0

[pepopowitz]

Archive versions 8.2/3.10.0, as they are no longer supported.

Tasks

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1. archive(8.2) preparation: ignore 8.2.x tags when publishing to production #4600
   dx +1
   
2. chore: update version archival process to account for infrastructure changes #4624
   component:docs +2
   
3. archive(8.2) isolation: remove all other versions (chonky boi) #4625
   dx +2
   
4. archive(8.2) isolation: pt 2, reviewable steps #4626
   dx +2
   
5. Isolation: Publish unsupported/8.2 release (as https://github.com/camunda/camunda-docs/releases/tag/8.2.49)
6. archive(8.2) exclusion: logically remove versions 8.2/3.10.0. Reviewable steps. #4641
   dx +2
   
7. archive(8.2) exclusion: physically remove files. Part 2, chonky boi. #4642
   
8. Exclusion: Publish main release (as https://github.com/camunda/camunda-docs/releases/tag/8.6.28)

See #2189 for the most recent previous archival.

[pepopowitz]

@akeller #4620 landed after I'd already began the isolation of 8.2. How important is it that I port it to this branch?

[akeller]

You can skip it @pepopowitz