update action again

Author: mwillsey

.github/workflows/build.yml

@@ -21,7 +21,7 @@ jobs:
     - uses: actions/checkout@v4
     - name: Install cargo deadlinks
       run: |
-        curl -L -o ~/.cargo/bin/cargo-deadlinks https://github.com/deadlinks/cargo-deadlinks/releases/download/0.4.2/deadlinks-linux
+        curl -L -o ~/.cargo/bin/cargo-deadlinks https://github.com/deadlinks/cargo-deadlinks/releases/download/0.8.1/cargo-deadlinks-linux
         chmod +x ~/.cargo/bin/cargo-deadlinks
         cargo deadlinks --version
     - name: Nits