Update wasm-tools crates (#2989)

* Update wasm-tools crates

This brings in recent updates, notably including more improvements to
wasm-smith which will hopefully help exercise non-trapping wasm more.

* Fix some wat

Cargo.toml

@@ -38,12 +38,12 @@ anyhow = "1.0.19"
 target-lexicon = { version = "0.12.0", default-features = false }
 pretty_env_logger = "0.4.0"
 file-per-thread-logger = "0.1.1"
-wat = "1.0.37"
+wat = "1.0.38"
 libc = "0.2.60"
 log = "0.4.8"
 rayon = "1.5.0"
 humantime = "2.0.0"
-wasmparser = "0.78.1"
+wasmparser = "0.79.0"
 lazy_static = "1.4.0"
 
 [dev-dependencies]
@@ -56,7 +56,7 @@ wasmtime-fuzzing = { path = "crates/fuzzing" }
 wasmtime-runtime = { path = "crates/runtime" }
 tokio = { version = "1.5.0", features = ["rt", "time", "macros", "rt-multi-thread"] }
 tracing-subscriber = "0.2.16"
-wast = "35.0.0"
+wast = "36.0.0"
 criterion = "0.3.4"
 num_cpus = "1.13.0"