Update scalafmt-core to 2.5.1

[BenFradet]

What this does?

Changes, features, fixes ...

Checklist

• Reviewed the diff to look for typos, println and format errors.
• Updated the docs accordingly.

[codecov]

Codecov Report

Merging #906 into master will increase coverage by 0.02%.
The diff coverage is 72.39%.

@@            Coverage Diff             @@
##           master     #906      +/-   ##
==========================================
+ Coverage   88.55%   88.58%   +0.02%     
==========================================
  Files          58       58              
  Lines         830      832       +2     
  Branches        3        3              
==========================================
+ Hits          735      737       +2     
  Misses         95       95              

Impacted Files	Coverage Δ
...higherkindness/mu/rpc/config/channel/channel.scala	100.00% <ø> (ø)
...higherkindness/mu/rpc/internal/encoders/avro.scala	81.60% <0.00%> (ø)
...kindness/mu/rpc/kafka/kafkaManagementService.scala	55.29% <37.93%> (ø)
...cala/higherkindness/mu/rpc/server/GrpcServer.scala	84.00% <66.66%> (ø)
...higherkindness/mu/rpc/internal/MonixAdapters.scala	87.50% <82.35%> (ø)
...herkindness/mu/rpc/channel/cache/ClientCache.scala	86.20% <83.33%> (+1.02%)	⬆️
.../main/scala/higherkindness/mu/http/implicits.scala	81.25% <85.71%> (ø)
...rkindness/mu/rpc/internal/metrics/MetricsOps.scala	97.05% <96.42%> (ø)
.../src/main/scala/higherkindness/mu/rpc/config.scala	100.00% <100.00%> (ø)
...herkindness/mu/rpc/kafka/KafkaManagementImpl.scala	100.00% <100.00%> (ø)
... and 5 more

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