Build tracing using CLIs before 2.7.3 no longer works with the most
recent update to the `ubuntu-22.04` runner image.
With this new logic, we can remove the workarounds around testing
`windows-2019` and `windows-2022`.
This commit adds the packs and queries from the actions input to the
config file used by the CodeQL CLI.
When the `+` is used, the actions input value is combined with the
config value and when it is not used, the input value overrides the
config value.
This commit also adds a bunch of integration tests for this feature.
In order to avoid adding too many new jobs, all of the tests are
run sequentially in a single job (matrixed across relevant operating
systems and OSes).
