Redundant "Unable to execute code after break" diagnostic is given when using a label after a break

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### How are you using the lua-language-server?

Kakoune

### Which OS are you using?

Linux

### What is the issue affecting?

Diagnostics/Syntax Checking

### Expected Behaviour

No diagnostic is given.

### Actual Behaviour

A diagnostic `Unable to execute code after 'break'` is given, even though the only thing after the `break` is a label.

### Reproduction steps

Reproducible with the following code:
```lua
for i = 1, 10 do
if i < 8 then
print(i)
goto continue
end
break
::continue::
end
```

### Additional Notes

_No response_

### Log File

The log isn't very relevant in this case but here it is anyway.
[luals.log](https://github.com/LuaLS/lua-language-server/files/15503586/luals.log)

Commencez par la reproduction Lua sous Diagnostics/Syntax Checking et faites-la passer par le serveur de langage dans Kakoune sous Linux. Suivez l’endroit où le diagnostic `Unable to execute code after 'break'` est produit, puis vérifiez que le diagnostic est absent lorsque la seule instruction suivante est l’étiquette `::continue::`.

Rédigé par le modèle d'indexation à partir du texte de l'issue.