[DM-33907] Change physical_filter+detector+exposure WARNING to DEBUG

[tgoldina]

https://jira.lsstcorp.org/browse/DM-33907

Checklist

• ran Jenkins
• added a release note for user-visible changes to doc/changes

[codecov]

Codecov Report

Merging #656 (8c1fd39) into main (fea7036) will not change coverage.
The diff coverage is 0.00%.

@@           Coverage Diff           @@
##             main     #656   +/-   ##
=======================================
  Coverage   83.67%   83.67%           
=======================================
  Files         239      239           
  Lines       30377    30377           
  Branches     5089     5089           
=======================================
  Hits        25419    25419           
  Misses       3805     3805           
  Partials     1153     1153           

Impacted Files	Coverage Δ
python/lsst/daf/butler/core/configSupport.py	65.57% <0.00%> (ø)

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