Test lightning-transaction-sync in our no-dev-deps MSRV test

Now that `lightning-transaction-sync` is in the workspace and
covered by our MSRV we should be testing it in our
`msrv-no-dev-deps-check` test crate.

msrv-no-dev-deps-check/Cargo.toml

@@ -6,6 +6,7 @@ edition = "2021"
 [dependencies]
 lightning = { path = "../lightning" }
 lightning-block-sync = { path = "../lightning-block-sync", features = [ "rest-client", "rpc-client" ] }
+lightning-transaction-sync = { path = "../lightning-transaction-sync", features = [ "esplora-async-https", "electrum" ] }
 lightning-invoice = { path = "../lightning-invoice" }
 lightning-net-tokio = { path = "../lightning-net-tokio" }
 lightning-persister = { path = "../lightning-persister" }