Improve CI build speed

[msdousti]

Improve CI build speed by not running Maven package for the whole project. Using the past execution statistics, the build used to take 5 mins, which is now improved to 3 mins 🙂

Description

Due to the Maven shade plugin for logbook-servlet module, we need to run package once without running tests, and then run verify.
This can be improved by limiting the package step to the logbook-servlet module only (plus its dependencies)

Motivation and Context

This is a minor change to the CI build step, and improves the build speed.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.