try fix github actions Check error

Author: ltfschoen

.github/workflows/release.yml

@@ -27,6 +27,7 @@ jobs:
           rustup update stable
           rustup toolchain install nightly-2021-08-31
           rustup default nightly-2021-08-31
+          rustup override set nightly-2021-08-31
           rustup target add wasm32-unknown-unknown --toolchain nightly-2021-08-31
           cargo build --release
 

.github/workflows/test.yml

@@ -22,12 +22,14 @@ jobs:
         with:
           profile: minimal
           toolchain: nightly
+          override: true
 
       - name: Initialize WASM build environment
         run: |
           rustup update stable
           rustup toolchain install nightly-2021-08-31
           rustup default nightly-2021-08-31
+          rustup override set nightly-2021-08-31
           rustup target add wasm32-unknown-unknown --toolchain nightly-2021-08-31
 
       - name: Run cargo check
@@ -52,12 +54,14 @@ jobs:
         with:
           profile: minimal
           toolchain: nightly
+          override: true
 
       - name: Initialize WASM build environment
         run: |
           rustup update stable
           rustup toolchain install nightly-2021-08-31
           rustup default nightly-2021-08-31
+          rustup override set nightly-2021-08-31
           rustup target add wasm32-unknown-unknown --toolchain nightly-2021-08-31
 
       # Runs integration tests in the runtime/tests folder