Address review comments from @ishan16696 2.

* Nit change: change `context.TODO()` to `context.Background()`.

pkg/snapstore/abs_snapstore.go

@@ -110,7 +110,7 @@ func NewABSSnapStore(config *brtypes.SnapstoreConfig) (*ABSSnapStore, error) {
 	}
 
 	// Check if the ABS container exists (moved over from client constructor function)
-	ctx, cancel := context.WithTimeout(context.TODO(), providerConnectionTimeout)
+	ctx, cancel := context.WithTimeout(context.Background(), providerConnectionTimeout)
 	defer cancel()
 
 	if _, err := client.GetProperties(ctx, nil); err != nil {