fix(security): dont marshal secrets to JSON

[markphelps]

do not expose secrets to JSON endpoints

we should come up with a strategy to test for this to prevent regressions and also to guard against any future config options having to do with secrets

[codecov]

Codecov Report

Merging #2153 (22712af) into release/1.27 (11f36fa) will decrease coverage by 0.02%.
Report is 4 commits behind head on release/1.27.
The diff coverage is n/a.

@@               Coverage Diff                @@
##           release/1.27    #2153      +/-   ##
================================================
- Coverage         70.64%   70.63%   -0.02%     
================================================
  Files                73       73              
  Lines              7066     7066              
================================================
- Hits               4992     4991       -1     
- Misses             1788     1789       +1     
  Partials            286      286              

Files Changed	Coverage Δ
internal/config/authentication.go	72.22% <ø> (ø)
internal/config/cache.go	100.00% <ø> (ø)
internal/config/database.go	91.66% <ø> (ø)
internal/config/server.go	100.00% <ø> (ø)
internal/config/storage.go	81.69% <ø> (ø)

... and 1 file with indirect coverage changes

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