DeleteCollectionAsync is not deleting the collection, even if collection exists.

[Jawahar-Mariappan]

Describe the bug I reckon, the function 'DeleteCollectionAsync' in "\semantic-kernel\dotnet\src\Connectors\Connectors.Memory.Qdrant\QdrantMemoryStore.cs" is having the logical error.

If collection exists then I reckon, we should delete them. The function '_qdrantClient.DoesCollectionExistAsync' returns true, if the collection exists. However, the conditional statement is having the not check so not deleting the collection, even if it exists.

[evchaki]

@Jawahar-Mariappan , thanks for bringing this up, we are looking into it.

[craigomatic]

Fixed in #1025