Fix Qdrant vector store id type #262

[nextmwa]

• Removed previous dependency on ramsey/uuid
• Added optional parameter for document ID type in the Document object constructor
• Added private method for generating UUID v4 internally within the Document class

[ilvalerione]

I think keeping only the INT strategy is the best. Documents are created inside data loaders so you typically don't have the chance to pass the id type. Integer should be compatible with all databases.

But extracting a random int does not guarantee uniqueness. Don't you think microtime(true)*10000 should solve the problem?

public function generateId(): int
{
    return microtime(true)*10000;
}