Fix docs.rs for crates which depend on lightning w/o features

Author: TheBlueMatt

lightning-background-processor/Cargo.toml

@@ -11,6 +11,7 @@ edition = "2021"
 
 [package.metadata.docs.rs]
 all-features = true
+features = ["lightning/std"]
 rustdoc-args = ["--cfg", "docsrs"]
 
 [features]

lightning-rapid-gossip-sync/Cargo.toml

@@ -9,6 +9,10 @@ description = """
 Utility to process gossip routing data from Rapid Gossip Sync Server.
 """
 
+[package.metadata.docs.rs]
+all-features = true
+features = ["lightning/std"]
+
 [features]
 default = ["std"]
 std = []