Update actions/upload-artifact action to v4.6.2

Author: renovate[bot]

.github/workflows/test-client.yaml

@@ -27,7 +27,7 @@ jobs:
       - name: Tar example files
         run: tar -czf example.tar ./example
       - name: Upload Generated Client
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: example-${{ inputs.name }}-client
           path: ./example.tar