Update the wat and wast crates (#998)

Now with support for annotations, plus a few minor bug fixes

Cargo.lock

@@ -2231,7 +2231,7 @@ version = "0.9.0"
 dependencies = [
  "anyhow",
  "wasmtime",
- "wast 8.0.0",
+ "wast 9.0.0",
 ]
 
 [[package]]
@@ -2245,20 +2245,20 @@ dependencies = [
 
 [[package]]
 name = "wast"
-version = "8.0.0"
+version = "9.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3f9df3d716118a503b2f6bbb6ff46b21997ab0cc167b01de7a188e45e4b01e8d"
+checksum = "ee7b16105405ca2aa2376ba522d8d4b1a11604941dd3bb7df9fd2ece60f8d16a"
 dependencies = [
  "leb128",
 ]
 
 [[package]]
 name = "wat"
-version = "1.0.9"
+version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4a927b35badc29c97d97e82689eef7f72fc936d884b3391804c1bb6cd2bdccbb"
+checksum = "56173f7f4fb59aebe35a7e71423845e1c6c7144bfb56362d497931b6b3bed0f6"
 dependencies = [
- "wast 8.0.0",
+ "wast 9.0.0",
 ]
 
 [[package]]