wasmtime: update to v0.31.0. (#196)

Signed-off-by: Piotr Sikora <[email protected]>

Author: PiotrSikora

.github/workflows/cargo.yml

@@ -40,4 +40,6 @@ jobs:
       run: |
         cargo install cargo-raze --version 0.12.0
         cargo raze
-        git diff --exit-code
+        # Ignore manual changes in "errno" crate until fixed in cargo-raze.
+        # See: https://github.com/google/cargo-raze/issues/451
+        git diff --exit-code -- ':!remote/BUILD.errno-0.2.8.bazel'

bazel/cargo/BUILD.bazel

@@ -14,7 +14,7 @@ licenses([
 # Aliased targets
 alias(
     name = "anyhow",
-    actual = "@proxy_wasm_cpp_host__anyhow__1_0_44//:anyhow",
+    actual = "@proxy_wasm_cpp_host__anyhow__1_0_45//:anyhow",
     tags = [
         "cargo-raze",
         "manual",
@@ -61,7 +61,7 @@ alias(
 
 alias(
     name = "wasmtime",
-    actual = "@proxy_wasm_cpp_host__wasmtime__0_30_0//:wasmtime",
+    actual = "@proxy_wasm_cpp_host__wasmtime__0_31_0//:wasmtime",
     tags = [
         "cargo-raze",
         "manual",