[GH] (pekko-projection/port-akka-980-grpc-reconnect-noise): Workflow run "Unit Tests" failed!

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The GitHub Actions job "Unit Tests" on pekko-projection.git/port-akka-980-grpc-reconnect-noise has failed.
Run started by GitHub user pjfanning (triggered by pjfanning).

Head commit for run:
36d58e278d398ad7326d159d1984b6eaba92ae48 / PJ Fanning <pj...@users.noreply.github.com>
grpc: less log noise on GrpcReadJournal connection failure

Motivation:
When the gRPC producer is unreachable, the GrpcReadJournal eventsBySlices
stream fails with a RuntimeException wrapping the gRPC UNAVAILABLE error,
including a full stack trace. The projection restarts and retries, so this
common situation produces a lot of log noise.

Modification:
Port akka/akka-projection#980: add internal ConnectionException (with
NoStackTrace) and map GrpcServiceException with status UNAVAILABLE to it in
the eventsBySlices recover. Other failures are still wrapped in the existing
RuntimeException.

Result:
A failed or lost connection surfaces as a short "Connection to host:port for
stream id ... failed or lost" error without a stack trace. Failure and retry
semantics are unchanged.

Tests:
- sbt "grpc-test/Test/testOnly org.apache.pekko.projection.grpc.consumer.scaladsl.GrpcReadJournalConnectionSpec": passes; fails without the GrpcReadJournal change (RuntimeException "Failure to consume gRPC event stream ..." is not a ConnectionException)
- scalafmt on changed files, sbt headerCreateAll/headerCheckAll for grpc and grpc-test, git diff --check
- MiMa not run: MimaPlugin is disabled for the grpc module (new in 2.0.0)

References:
Refs akka/akka-projection#980 (https://github.com/akka/akka-projection/pull/980) - source of the ported code

Report URL: https://github.com/apache/pekko-projection/actions/runs/40145367420

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