use 1.69.0

.github/workflows/tester.yaml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 1
 
@@ -33,11 +33,15 @@ jobs:
             target/
           key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
 
-      - name: Load toolchain
-        uses: dtolnay/rust-toolchain@stable
-        with:
-          toolchain: stable
-          targets: wasm32-unknown-unknown
+      - name: Install Rust
+        run: rustup default 1.69.0
+
+      - name: Install Rust
+        run: rustup update nightly
+
+      - name: Install target
+        run: rustup target add wasm32-unknown-unknown
+
       - run: cargo fetch --verbose
       - run: cargo build
       - run: cargo wasm