Test with 5.3.1 instead of 5.3.0

Author: MaxDesiatov

.github/workflows/test.yml

@@ -10,7 +10,7 @@ jobs:
       matrix:
         os: [macOS-10.15, Ubuntu-18.04]
         toolchain:
-          - wasm-5.3.0-RELEASE
+          - wasm-5.3.1-RELEASE
           - wasm-5.4.0-RELEASE
     runs-on: ${{ matrix.os }}
     steps: