Invalid regular expression: missing /

- Are you on the latest version of ytdl-core?
- yes
- Search the list of issues for a possible duplicate.
- #1141 (closed for a few months now)

```cmd
SyntaxError: Invalid regular expression: missing /
File "node:vm", line 100, col 7, in new Script
File "/app/node_modules/ytdl-core/lib/sig.js", line 116, col 51, in exports.decipherFormats
const nTransformScript = functions.length > 1 ? new vm.Script(functions[1]) : null;
File "node:internal/process/task_queues", line 95, col 5, in process.processTicksAndRejections
File "index 0", in Promise.all
File "/app/node_modules/ytdl-core/lib/info.js", line 401, col 17, in exports.getInfo
let results = await Promise.all(funcs);
```