Use the --resolve-query-specs parameter of pack download

This will allow the command to resolve packs with paths.

Also, use a more concise version of `tr`.

lib/codeql.js

@@ -641,6 +641,7 @@ async function getCodeQLForCmd(cmd, checkVersion) {
                 "pack",
                 "download",
                 "--format=json",
+                "--resolve-query-specs",
                 ...getExtraOptionsFromEnv(["pack", "download"]),
                 ...packs,
             ];