This decorator enabled us to use the functionality of the Actions
toolcache within the runner too.
Now that we've deleted the runner we no longer need it.
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).
4.4.2 introduces a breaking change that the variable in a catch clause
is now `unknown` type. So, we need to cast the `e`, `err`, or `error`
variables to type `Error`.
