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`.
This commit adds a `packs` option to the codeql-config.yml file. Users
can specify a list of ql packs to include in the analysis.
For a single language analysis, the packs property looks like this:
```yaml
packs:
- pack-scope/pack-name1@1.2.3
- pack-scope/pack-name2 # no explicit version means download the latest
```
For multi-language analysis, you must key the packs block by lanaguage:
```yaml
packs:
cpp:
- pack-scope/pack-name1@1.2.3
- pack-scope/pack-name2
java:
- pack-scope/pack-name3@1.2.3
- pack-scope/pack-name4
```
This implementation adds a new analysis run (alongside custom and
builtin runs). The unit tests indicate that the correct commands are
being run, but I have not actually tried this with a real CLI.
Also, convert `instanceof Array` to `Array.isArray` since that is
sightly better in some situations. See:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray#instanceof_vs_isarray
