bump versions on spin

Signed-off-by: Brian H <[email protected]>

Author: fibonacci1729

.github/workflows/build.yaml

@@ -26,7 +26,7 @@ jobs:
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: 1.79
+          toolchain: 1.81
 
       - name: Install dependencies
         run: |
@@ -63,7 +63,7 @@ jobs:
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: 1.79
+          toolchain: 1.81
           targets: ${{ matrix.config.target }}
       - name: Install Spin
         uses: rajatjindal/setup-actions/spin@main