Statamic v5 fix code embed

[clementmas]

I installed this package on Statamic v5 and got this error:

ErrorException: Array to string conversion in file vendor/simonridley/tracking-code-manager/src/TrackingCodeTags.php on line 41

The code fields of tracking-codes.yaml are now apparently nested one level deeper:

enabled: true
scripts:
  -
    id: lxsrgt5v
    enabled: true
    name: 'Cookie Banner'
    script:
      code: '<script src="..."></script>'
      mode: htmlmixed
    position: head

So changing the line proposed in this PR fixed my issue.

[replete]

Can we get this fix in? Does not work in v5.

[bland-industries]

I ran into this and am thinking a condition would work best to allow for older version yaml files

if (is_array($script)) {
    $script = $script['code'];
} 
$output .= $script;

[clementmas]

That's a good point @bland-industries. Thanks.

@simonridley I think this PR is safe to merge.

[jnbn]

@simonridley can you accept this and release when you're available? Happy to help you to manage PR's and releases if you need help. (As I just saw your message on the other PR)