Update GitHub Actions workflows. (#541)

This PR was automatically generated by the
update-workflows-ecosystem-providers workflow in the pulumi/ci-mgmt
repo, from commit 32350b582889a810aa1e8465fc4f7a65666fa1c1.

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

@@ -58,7 +58,7 @@ jobs:
         go-version: ${{ env.GOVERSION }}
         cache-dependency-path: "**/*.sum"
     - name: Install pulumictl
-      uses: jaxxstorm/action-install-gh-release@4304621e8c48d66093a8a214af5d5b5bc3b3d943 # v2.0.0
+      uses: jaxxstorm/action-install-gh-release@6096f2a2bbfee498ced520b6922ac2c06e990ed2 # v2.1.0
       with:
         repo: pulumi/pulumictl
     - name: Install Pulumi CLI