[NU-1296] Ad-hoc tests with ververica

[ForrestFairy]

Describe your changes

Added new default parameter in couple of places connected to flink so when test is run, program won't use metrics that are meant for production - "flink-dropwizard-metrics-deps/". If this is present in classPath for Ververica category, once job is sent to Ververica, it starts for a while but after about a minute job fails as this metrics are duplicated.

Checklist before merge

• [x] Related issue ID is placed at the beginning of PR title in [brackets] (can be GH issue or Nu Jira issue)
• [ ] Code is cleaned from temporary changes and commented out lines
• [ ] Parts of the code that are not easy to understand are documented in the code
• [ ] Changes are covered by automated tests
• [ ] Showcase in dev-application.conf added to demonstrate the feature
• [ ] Documentation added or updated
• [ ] Added entry in Changelog.md describing the change from the perspective of a public distribution user
• [ ] Added MigrationGuide.md entry in the appropriate subcategory if introducing a breaking change
• [ ] Verify that PR will be squashed during merge