graphdb: pass context to PruneGraph

graph/db/graph.go

@@ -446,12 +446,13 @@ func (c *ChannelGraph) DisconnectBlockAtHeight(height uint32) (
 // prune the graph is stored so callers can ensure the graph is fully in sync
 // with the current UTXO state. A slice of channels that have been closed by
 // the target block are returned if the function succeeds without error.
-func (c *ChannelGraph) PruneGraph(spentOutputs []*wire.OutPoint,
+func (c *ChannelGraph) PruneGraph(ctx context.Context,
+	spentOutputs []*wire.OutPoint,
 	blockHash *chainhash.Hash, blockHeight uint32) (
 	[]*models.ChannelEdgeInfo, error) {
 
 	edges, nodes, err := c.db.PruneGraph(
-		spentOutputs, blockHash, blockHeight,
+		ctx, spentOutputs, blockHash, blockHeight,
 	)
 	if err != nil {
 		return nil, err