docker cliFlags doesn't support templated fields?

It looks like `cliFlags` doesn't support templated fields:

```yaml
cliFlags:
- "--label=test={{.IMAGE_TAG}}"
```

### Expected behavior
```sh
$ skaffold build
...
$ docker inspect test:123456789 --format '{{ index .Config.Labels "test" }}'
123456789
```

### Actual behavior
```sh
$ skaffold build
...
$ docker inspect test:123456789 --format '{{ index .Config.Labels "test" }}'
{{.IMAGE_TAG}}
```

### Information

- Skaffold version: v2.4.1
- Operating system: macos 13.4 (22F66)
- Installed via: Homebrew