Merge rust-bitcoin#3656: Fix typo in hash tag type

d9ccb60 Fix typo in hash tag type (Tobin C. Harding)

Pull request description:

  In commit: `39f7dcb Reduce API surface of tagged wrapped hash types` I introduced a typo in the tagged hash tag type. Fortunately it has no effect because the tag type controls how an engine  is created (when the tag is input into the engine) and has no effect on the call to `from_engine`. However the typo makes the code confusing.

  This bug is currently unreleased.

  Fix: rust-bitcoin#3649

ACKs for top commit:
  apoelstra:
    ACK d9ccb60; successfully ran local tests

Tree-SHA512: 54cc78fb74ea119beaf4500d49a4d3954ffc3c52494b3ebc1539a3eec35078cb9388e72b42c59f371b53cced89b7b6303a0e3d3b02e59d72da182dd7bbfe2a55

bitcoin/src/taproot/mod.rs

@@ -68,7 +68,7 @@ crate::internal_macros::define_extension_trait! {
             let mut eng = sha256t::Hash::<TapLeafTag>::engine();
             ver.to_consensus().consensus_encode(&mut eng).expect("engines don't error");
             script.consensus_encode(&mut eng).expect("engines don't error");
-            let inner = sha256t::Hash::<TapTweakTag>::from_engine(eng);
+            let inner = sha256t::Hash::<TapLeafTag>::from_engine(eng);
             TapLeafHash::from_byte_array(inner.to_byte_array())
         }
     }