docs: adds details to test results processor config option

[zoltan-boros]

Summary

Based on the documentation (https://jestjs.io/docs/configuration) it was unclear to me what a test result processor (config option: testResultsProcessor), respectively a reporter (config option: reporters) does. Documentation makes the impression that they have the same purpose.
After searching on the internet I found some clue: jest-community/jest-junit#158
I would like to add this little piece of information to Jest docs.

Test plan

None. Only documentatin changed.

[codecov-commenter]

Codecov Report

Merging #12206 (873dfd4) into main (12a983b) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main   #12206      +/-   ##
==========================================
- Coverage   67.53%   67.52%   -0.01%     
==========================================
  Files         328      328              
  Lines       17244    17244              
  Branches     5069     5069              
==========================================
- Hits        11645    11644       -1     
- Misses       5566     5567       +1     
  Partials       33       33              

Impacted Files	Coverage Δ
packages/expect/src/utils.ts	96.03% <0.00%> (-0.50%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 12a983b...873dfd4. Read the comment docs.

[Biki-das]

looks good , could you make the changes in the other versions of doc too, and add it to the main doc folder too

[zoltan-boros]

looks good , could you make the changes in the other versions of doc too, and add it to the main doc folder too

Sorry for the delayed reply.
I added the change to /docs too.
Regarding older versions: I would prefer not to alter the past.
Would you mind if I keep older versions as they are?

[SimenB]

Please update all versions of the docs, people still use older versions, so the docs should reflect the latest information relevant for that version of Jest 🙂

[zoltan-boros]

@SimenB, Thank you for taking care of this PR.
I added the doc change to every version of the docs.

[SimenB]

thanks!

[github-actions]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.
Please note this issue tracker is not a help forum. We recommend using StackOverflow or our discord channel for questions.