feat: simple span error log and gofumpt

[GGXXLL]

No description provided.

[codecov]

Codecov Report

Merging #214 (1190b43) into master (49d5b2f) will increase coverage by 0.03%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##           master     #214      +/-   ##
==========================================
+ Coverage   82.22%   82.25%   +0.03%     
==========================================
  Files          92       92              
  Lines        3494     3483      -11     
==========================================
- Hits         2873     2865       -8     
+ Misses        461      456       -5     
- Partials      160      162       +2     

Impacted Files	Coverage Δ
c.go	76.58% <ø> (-0.15%)	⬇️
config/watcher/signal.go	75.00% <ø> (ø)
key/key_manager.go	81.81% <0.00%> (ø)
leader/dependency.go	85.91% <ø> (ø)
leader/leaderredis/redis.go	86.66% <ø> (ø)
observability/metrics.go	100.00% <ø> (ø)
observability/observability.go	100.00% <ø> (ø)
otgorm/otgorm.go	77.77% <0.00%> (-3.36%)	⬇️
otkafka/dependency.go	93.79% <ø> (ø)
otmongo/hook.go	89.13% <0.00%> (+1.89%)	⬆️
... and 17 more

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