fix(Qdrant): Collection Exists API return type

[Anush008]

Description

This API endpoint returns a boolean not a string.
Ref: https://api.qdrant.tech/v-1-12-x/api-reference/collections/collection-exists#response.body.result.exists

[vmanoharas]

Dear Partner

I hope you are doing well.
Congratulations, your pull request is approved. We will move forward with the certification process. We are preparing your connector for production deployment and will queue up for the next deployment schedule. Once your connector onboards the next deployment schedule, it starts to deploy your connector in our production environments that typically takes 3-4 weeks.
Please let us know if you have any questions.
Thank you very much for working with us.

[vmanoharas]

[[certify-connector]]

[vmanoharas]

Hello Partner,
I hope you are doing well.
Congratulations, the deployment of your connector and documentation page was already completed, We have a short survey - https://forms.office.com/Pages/ResponsePage.aspx?id=v4j5cvGGr0GRqy180BHbR0BHMrjhL0hDmckROosW6AFURERIVUUzMk5XRzJGV1dJM1Q5RVZJUjFXSC4u on the connector certification process that we would like for you to complete. Your feedback is appreciated and will help us improve the program.
Thank you very much for working with us.