Merge #492: bump electrsd dep to 0.13

f7f9bd2 bump electrsd dep to 0.13 (Riccardo Casatta)

Pull request description:

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  ### Description

  bump electrsd dep to 0.13, close #491

ACKs for top commit:
  rajarshimaitra:
    ACK f7f9bd2
  notmandatory:
    utACK f7f9bd2

Tree-SHA512: 89a8094387896c9296e2f0120d7a2c7419e979049a12fc9a6ae7fe1810b75af43338db235887dd9054a6b52e400491b77f8e006f61451da54aca9635098ab342

Author: notmandatory

Cargo.toml

@@ -94,7 +94,7 @@ test-md-docs = ["electrum"]
 lazy_static = "1.4"
 env_logger = "0.7"
 clap = "2.33"
-electrsd = { version= "0.12", features = ["trigger", "bitcoind_22_0"] }
+electrsd = { version= "0.13", features = ["trigger", "bitcoind_22_0"] }
 
 [[example]]
 name = "address_validator"