Add a dependency on jna 5.7 to provide a mac compatible version

[kenoir]

What does this change?

Previously we excluded the transitive JNA dependency (#237) as it is not required where we are using a JDK, however our deployed container images use a JRE only to reduce the container footprint, this doesn't work where the JNA dependency is excluded and causes runtime errors (as indicated in the elastic-apm docs).

This is in service of being able to run our Scala apps locally more easily in general in order to better test and debug their behaviour (this is a blocker to doing that).

See wellcomecollection/catalogue-api#743 for the offending PR and error.

How to test

• publishLocal the typesafe_app library, and attempt to run a dependent app in a JRE only environment e.g. ./builds/run_sbt_task_in_docker.sh "project items" "run" in https://github.com/wellcomecollection/catalogue-api.

How can we measure success?

Can we:

• Run consumers locally without this error
• Run consumers in production / staging with a JRE

Have we considered potential risks?

We are using a version of JNA not explicitly compatible with the elastic apm agent, that may cause other unexpected issues.