Add packs and queries from input

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).

lib/util.test.js

@@ -257,7 +257,11 @@ for (const [packs, expectedStatus] of ML_POWERED_JS_STATUS_TESTS) {
                 debugMode: false,
                 debugArtifactName: util.DEFAULT_DEBUG_ARTIFACT_NAME,
                 debugDatabaseName: util.DEFAULT_DEBUG_DATABASE_NAME,
-                injectedMlQueries: false,
+                augmentationProperties: {
+                    injectedMlQueries: false,
+                    packsInputCombines: false,
+                    queriesInputCombines: false,
+                },
             };
             t.is(util.getMlPoweredJsQueriesStatus(config), expectedStatus);
         });