fix public config key snapshot

packages/config/__snapshots__/index_spec.js

@@ -100,6 +100,7 @@ exports['src/index .getPublicConfigKeys returns list of public config keys 1'] =
   "e2e",
   "env",
   "execTimeout",
+  "exit",
   "experimentalFetchPolyfill",
   "experimentalInteractiveRunEvents",
   "experimentalSessionSupport",
@@ -110,6 +111,8 @@ exports['src/index .getPublicConfigKeys returns list of public config keys 1'] =
   "ignoreTestFiles",
   "includeShadowDom",
   "integrationFolder",
+  "isInteractive",
+  "keystrokeDelay",
   "modifyObstructiveCode",
   "nodeVersion",
   "numTestsKeptInMemory",