Issue when interpreting paths during sync with skaffold

### Expected behavior

Hi. I have setup skaffold to do file sync. While it works well, there is an issue when interpreting paths during sync.

For eg,

**This works:**

```yml
infer:
- 'packages/**/src/**/*.*'
```

**This does not work:**

```yml
infer:
- './packages/**/src/**/*.*'
```

Where its the same path but with a `./` in front. So, the file does not get matched during sync:

### Information

- Skaffold version: v1.16.0
- Operating system: Ubuntu server 20.04