Migrate to `@ParameterizedClass` where feasible

[sbrannen]

Several years ago we migrated from JUnit 4 based parameterized test classes to standard JUnit Jupiter based test classes with @ParameterizedTest methods.

However, the only reason we did that is that JUnit Jupiter did not have support for parameterized test classes.

Since JUnit Jupiter 5.13, however, there is built-in support for @ParameterizedClass.

Thus, we should migrate to @ParameterizedClass wherever feasible and/or beneficial.