PartyBus CI linting

Plugin code changes necessary to pass the PartyBus IL2 pipeline for linting and unit tests.

Execution failed for task ':checkstyleMain'.
> Checkstyle rule violations were found. See the report at: file:///app/build/reports/checkstyle/main.html
  Checkstyle files with violations: 10
  Checkstyle violations by severity: [error:173]

Run linting locally

docker run -it --rm -v $(pwd):/app registry1.dso.mil/ironbank/opensource/gradle/gradle-jdk11:7.4.2 bash
cd /app
gradle lintGradle

locally build only

docker run -it --rm -v $(pwd):/app registry1.dso.mil/ironbank/opensource/gradle/gradle-jdk11:7.4.2 bash
cd /app
gradle --build-cache assemble

locally run tests only

docker run -it --rm -v $(pwd):/app registry1.dso.mil/ironbank/opensource/gradle/gradle-jdk11:7.4.2 bash
cd /app
gradle test