bump upload-artifcat

Author: sylvestre

.github/workflows/website.yml

@@ -113,7 +113,7 @@ jobs:
         echo "uutils WASM build: ${commit_short} (${commit_date})"
 
     - name: Upload uutils WASM artifact
-      uses: actions/upload-artifact@v7
+      uses: actions/upload-artifact@v8
       with:
         name: wasm-coreutils
         path: wasm-out
@@ -214,7 +214,7 @@ jobs:
         echo "${{ matrix.name }} WASM build: ${s} (${d})"
 
     - name: Upload ${{ matrix.name }} WASM artifact
-      uses: actions/upload-artifact@v7
+      uses: actions/upload-artifact@v8
       with:
         name: wasm-${{ matrix.name }}
         path: wasm-out
@@ -389,7 +389,7 @@ jobs:
       run: rm -f public/js/wasm-terminal.test.html
 
     - name: Upload artifact for checking the output
-      uses: actions/upload-artifact@v7
+      uses: actions/upload-artifact@v8
       with:
         path: ./public