fix(ci): update rust toolchain in linux musl containers

Author: xusd320

.github/workflows/CI.yml

@@ -58,6 +58,7 @@ jobs:
               apk add --upgrade --no-cache curl nodejs npm --repository=https://dl-cdn.alpinelinux.org/alpine/edge/main &&
               node -v &&
               npm install -g yarn --force &&
+              rustup update stable &&
               yarn build --target x86_64-unknown-linux-musl
           - host: macos-latest
             target: aarch64-apple-darwin
@@ -109,6 +110,7 @@ jobs:
               apk add --upgrade --no-cache curl nodejs npm --repository=https://dl-cdn.alpinelinux.org/alpine/edge/main &&
               node -v &&
               npm install -g yarn --force &&
+              rustup update stable &&
               rustup target add aarch64-unknown-linux-musl &&
               yarn build --target aarch64-unknown-linux-musl
           - host: windows-latest