pipe all log messages to stdout for dev logger

[bobcallaway]

Confirmed with docker logs -f fulcio-server 2>/dev/null

This only fixes the development logger, not the prod one.

Fixes #641

Signed-off-by: Bob Callaway bcallaway@google.com

[codecov-commenter]

Codecov Report

Merging #673 (92b71b6) into main (ee8e8f9) will decrease coverage by 7.58%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #673      +/-   ##
==========================================
- Coverage   62.02%   54.44%   -7.59%     
==========================================
  Files          30       36       +6     
  Lines        1717     2228     +511     
==========================================
+ Hits         1065     1213     +148     
- Misses        569      923     +354     
- Partials       83       92       +9     

Impacted Files	Coverage Δ
cmd/app/http.go	53.96% <100.00%> (ø)
pkg/ca/fileca/load.go	58.62% <0.00%> (-10.35%)	⬇️
cmd/app/serve.go	19.33% <0.00%> (ø)
cmd/app/root.go	44.44% <0.00%> (ø)
cmd/app/createca.go	19.49% <0.00%> (ø)
cmd/app/version.go	31.81% <0.00%> (ø)
cmd/app/grpc.go	48.27% <0.00%> (ø)

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