Add support for Dropwizard 3

[kanderson250]

Resolves #97

This PR introduces support for Dropwizard v3. For context, Dropwizard 3 made very minor namespace changes to its packages, but the bigger issue was that it dropped support for Javas <11.

In the process of getting the multi-Java build to work, I discovered that the existing gradle version defined for this project (7.5.1) did not behave correctly with toolchains, so I also had to upgrade the gradle version.

Details:

• Adds Dropwizard 3 module with corresponding package name changes (logging extension code is otherwise unchanged)
• Updates project gradle version to 8.14.1 (most UTD Java 8-compatible version of gradle)
• Updates build.gradle files for other projects to use gradle 8.x -compatible syntax

Followup work:

This project adds support for Dropwizard 3. It is not compatible with Dropwizard 4+. Dropwizard 3 still uses the javax.* namespace, which we must use to define our metadata filter; Dropwizard 4 upgrades to the jakarta.* namespace. A quick follow-on PR for this work could add support for newer versions of Dropwizard, changing our filter to use the jakarta namespace as well.