Bump Wasmtime to 2.0.0 (#4874)

This commit replaces #4869 and represents the actual version bump that
should have happened had I remembered to bump the in-tree version of
Wasmtime to 1.0.0 prior to the branch-cut date. Alas!

crates/wiggle/macro/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "wiggle-macro"
-version = "0.41.0"
+version = "2.0.0"
 authors = ["Pat Hickey <phickey@fastly.com>", "Jakub Konka <kubkon@jakubkonka.com>", "Alex Crichton <alex@alexcrichton.com>"]
 edition = "2021"
 license = "Apache-2.0 WITH LLVM-exception"
@@ -21,7 +21,7 @@ test = false
 doctest = false
 
 [dependencies]
-wiggle-generate = { path = "../generate", version = "=0.41.0" }
+wiggle-generate = { path = "../generate", version = "=2.0.0" }
 quote = "1.0"
 syn = { version = "1.0", features = ["full"] }
 proc-macro2 = "1.0"