Add "multiple" report for ML-powered JS query enablement

When multiple ML-powered JS packs are in scope (an unsupported
scenario), the status report is "multiple".

src/util.test.ts

@@ -297,8 +297,15 @@ const ML_POWERED_JS_STATUS_TESTS: Array<[PackWithVersion[], string]> = [
   [[], "false"],
   [[{ packName: util.ML_POWERED_JS_QUERIES_PACK_NAME }], "latest"],
   [
-    [{ packName: util.ML_POWERED_JS_QUERIES_PACK_NAME, version: "0.0.2" }],
-    "0.0.2",
+    [{ packName: util.ML_POWERED_JS_QUERIES_PACK_NAME, version: "~0.0.2" }],
+    "~0.0.2",
+  ],
+  [
+    [
+      { packName: util.ML_POWERED_JS_QUERIES_PACK_NAME, version: "0.0.1" },
+      { packName: util.ML_POWERED_JS_QUERIES_PACK_NAME, version: "0.0.2" },
+    ],
+    "multiple",
   ],
   [
     [

src/util.ts

@@ -644,11 +644,16 @@ export const ML_POWERED_JS_QUERIES_PACK_NAME =
  * `init-action.ts` would each need to live in their own file. See `analyze-action-env.ts` for an
  * explanation as to why this is.
  */
-export function getMlPoweredJsQueriesStatus(config: Config) {
+export function getMlPoweredJsQueriesStatus(config: Config): string {
   const mlPoweredJsQueryPacks = (config.packs.javascript || []).filter(
     (pack) => pack.packName === ML_POWERED_JS_QUERIES_PACK_NAME
   );
-  return mlPoweredJsQueryPacks.length === 1
-    ? mlPoweredJsQueryPacks[0].version || "latest"
-    : "false";
+  switch (mlPoweredJsQueryPacks.length) {
+    case 1:
+      return mlPoweredJsQueryPacks[0].version || "latest";
+    case 0:
+      return "false";
+    default:
+      return "multiple";
+  }
 }