Update build-pdf.yml

Fixing node version to get rid of warnings.

Signed-off-by: Bill Traynor <[email protected]>

.github/workflows/build-pdf.yml

@@ -27,7 +27,7 @@ jobs:
     steps:
     # Step 1: Checkout the repository
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         submodules: 'recursive'
 
@@ -41,21 +41,21 @@ jobs:
 
     # Step 4: Upload the built PDF files as independent artifacts
     - name: Upload RISC-V-Trace-Control-Interface PDF
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: RISC-V-Trace-Control-Interface
         path: ${{ github.workspace }}/docs/RISC-V-Trace-Control-Interface.pdf
         retention-days: 30
 
     - name: Upload RISC-V-Trace-Connectors PDF
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: RISC-V-Trace-Connectors
         path: ${{ github.workspace }}/docs/RISC-V-Trace-Connectors.pdf
         retention-days: 30
 
     - name: Upload RISC-V-N-Trace PDF
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: RISC-V-N-Trace
         path: ${{ github.workspace }}/docs/RISC-V-N-Trace.pdf