1816 Logging-service improvements

[galethil]

Silence specific routes.Optional shortening of log ou…tput.

Checklist

• [ ] I have followed (at least) the PR section of the contributing guide.
• [ ] I fixed all necessary PR warnings
• [ ] The commit history is clean
• [ ] The E2E tests are passing
• [ ] If possible, the issue has been divided into more subtasks
• [ ] I did a self review before requesting a review from another team member

Description

How to test

0. Change "trubudget-logging-service": "file:../logging-service" in package.json of a service and build environment
1. Update variable SILENCE_LOGGING_ON_FREQUENT_ROUTES=true
2. Test if endpoints like /readiness are not logging
3. Update variable SHORT_ROUTES_LOGGING_OUTPUT=true
4. Test if logs are short. Not implemented in api service

Closes #1816