[BUG][SCALA] error: not found: type ByteArray

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• What's the version of OpenAPI Generator used?
• Have you search for related issues/PRs?
• What's the actual output vs expected output?
• [Optional] Bounty to sponsor the fix (example)

Description

When generating a scala-akka client for Argo Workflows, I get code with three references to ByteArray. Doesn't look like Scala has that type built-in. I'm able to eliminate the build error by changing it to Array[Byte], but I haven't tested to make sure that client actually works.

openapi-generator version

4.3.0-SNAPSHOT

OpenAPI declaration file content or url

https://raw.githubusercontent.com/argoproj/argo/20d6e27bdf11389f23b2efe1be4ef737f333221d/api/openapi-spec/swagger.json

Command line used for generation

java -jar modules/openapi-generator-cli/target/openapi-generator-cli.jar generate -i https://raw.githubusercontent.com/argoproj/argo/20d6e27bdf11389f23b2efe1be4ef737f333221d/api/openapi-spec/swagger.json -g scala-akka -o ~/src/argo-client-scala --artifact-id argo-client-scala --artifact-version 0.1-SNAPSHOT --group-id com.crenshaw_dev

Steps to reproduce

cd ~/src/argo-client-scala
mvn clean install

Related issues/PRs

Suggest a fix

Maybe ByteArray just needs to be replaced with Array[Byte]?

Reproduce the failure with the supplied OpenAPI URL and the scala-akka generation command, then run mvn clean install in the generated argo-client-scala project. Trace the scala-akka templates or type mappings that emit ByteArray and compare them with the generated references. Done means the generated client builds without an unknown ByteArray type and uses the correct Scala byte-array representation.