Update GitHub Actions workflows. (#633)

This PR was automatically generated by the
update-workflows-ecosystem-providers workflow in the pulumi/ci-mgmt
repo, from commit 5619381e924fbac90750f41b6a27cadcd11c4c2d.

.github/workflows/weekly-pulumi-update.yml

@@ -8,9 +8,7 @@ on:
 env:
   GITHUB_TOKEN: ${{ secrets.PULUMI_BOT_TOKEN }}
   PROVIDER: docker-build
-  PULUMI_LOCAL_NUGET: ${{ github.workspace }}/nuget
   TRAVIS_OS_NAME: linux
-  PULUMI_GO_DEP_ROOT: ${{ github.workspace }}/..
   GOVERSION: "1.21.x"
   NODEVERSION: "20.x"
   PYTHONVERSION: "3.11.8"
@@ -64,7 +62,7 @@ jobs:
       with:
         dotnet-version: ${{ env.DOTNETVERSION }}
     - name: Setup Node
-      uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
+      uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
       with:
         node-version: ${{ env.NODEVERSION }}
         registry-url: https://registry.npmjs.org