[confmap] Mark module as stable

[mx-psi]

Fixes #9379.

I removed two TODOs because I think we can just stay with the current behavior, but would want confirmation from @codeboten about this since it's mentioned here #4880 (review)

[mx-psi]

cc @open-telemetry/collector-approvers

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.88%. Comparing base (e375da4) to head (6afeeab).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10920      +/-   ##
==========================================
+ Coverage   91.87%   91.88%   +0.01%     
==========================================
  Files         411      411              
  Lines       19330    19330              
==========================================
+ Hits        17760    17762       +2     
+ Misses       1219     1218       -1     
+ Partials      351      350       -1     

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[TylerHelmuth]

🥳

[codeboten]

I agree that those TODOs are probably not going to get addressed in the foreseeable future and they haven't caused issues thus far.

[mx-psi]

From 2024-08-21 meeting, we will merge this by Friday unless somebody blocks this PR

[dmitryax]

LGTM 👍

[TylerHelmuth]

@mx-psi before you merge take a look at #10950. I believe the issue is the result of a regression (when I tested the scenario with 0.90.0 the collector did not panic).