Update HTTP and gRPC log middleware/interceptor

[raphael]

So they log each request and response status.

This replaces the use of the Goa HTTP middleware and adds logs for gRPC.

This PR also switches to golangci-lint for linting.

[codecov-commenter]

Codecov Report

Merging #283 (b47e376) into main (4d1dc69) will increase coverage by 0.02%.
The diff coverage is 95.27%.

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@@            Coverage Diff             @@
##             main     #283      +/-   ##
==========================================
+ Coverage   94.42%   94.45%   +0.02%     
==========================================
  Files          43       43              
  Lines        2225     2309      +84     
==========================================
+ Hits         2101     2181      +80     
- Misses         91       94       +3     
- Partials       33       34       +1     

Flag	Coverage Δ
micro	94.45% <95.27%> (+0.02%)	⬆️

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Files Changed	Coverage Δ
trace/options.go	73.46% <85.71%> (ø)
log/http.go	84.61% <88.23%> (+1.05%)	⬆️
log/grpc.go	94.73% <98.64%> (+2.81%)	⬆️
debug/debug.go	100.00% <100.00%> (ø)
debug/grpc.go	100.00% <100.00%> (ø)
debug/options.go	100.00% <100.00%> (ø)
health/handler.go	100.00% <100.00%> (ø)
log/format.go	100.00% <100.00%> (ø)
log/log.go	100.00% <100.00%> (ø)

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