Update GitHub Actions workflows. (#471)

This PR was automatically generated by the
update-workflows-ecosystem-providers workflow in the pulumi/ci-mgmt
repo, from commit 53d4b52d48d4eefbda8214c9c383902c2614ba30.

.github/workflows/master.yml

@@ -143,8 +143,9 @@ jobs:
         tools: pulumictl, pulumicli, ${{ matrix.language }}
     - name: Download bin
       uses: ./.github/actions/download-bin
-    - run: dotnet nuget add source ${{ github.workspace }}/nuget
+    - name: Add NuGet source
       if: matrix.language == 'dotnet'
+      run: dotnet nuget add source ${{ github.workspace }}/nuget
     - name: Download SDK
       uses: ./.github/actions/download-sdk
       with:

.github/workflows/prerelease.yml

@@ -88,14 +88,17 @@ jobs:
         tools: pulumictl, pulumicli, nodejs, python, dotnet, go, java
     - name: Download bin
       uses: ./.github/actions/download-bin
-    - run: dotnet nuget add source ${{ github.workspace }}/nuget
+    - name: Add NuGet source
+      if: matrix.language == 'dotnet'
+      run: dotnet nuget add source ${{ github.workspace }}/nuget
     - name: Download SDK
       uses: ./.github/actions/download-sdk
       with:
         language: ${{ matrix.language }}
     - name: Update path
       run: echo "${{ github.workspace }}/bin" >> "$GITHUB_PATH"
     - name: Install Python deps
+      if: matrix.language == 'python'
       run: |-
         pip3 install virtualenv==20.0.23
         pip3 install pipenv

.github/workflows/release.yml

@@ -93,14 +93,17 @@ jobs:
         tools: pulumictl, pulumicli, ${{ matrix.language }}
     - name: Download bin
       uses: ./.github/actions/download-bin
-    - run: dotnet nuget add source ${{ github.workspace }}/nuget
+    - name: Add NuGet source
+      if: matrix.language == 'dotnet'
+      run: dotnet nuget add source ${{ github.workspace }}/nuget
     - name: Download SDK
       uses: ./.github/actions/download-sdk
       with:
         language: ${{ matrix.language }}
     - name: Update path
       run: echo "${{ github.workspace }}/bin" >> "$GITHUB_PATH"
     - name: Install Python deps
+      if: matrix.language == 'python'
       run: |-
         pip3 install virtualenv==20.0.23
         pip3 install pipenv

.github/workflows/verify-release.yml

@@ -11,6 +11,11 @@ on:
         description: "Enable the MacOS runner in addition to Linux and Windows. Defaults to 'false'."
         required: false
         type: boolean
+      skipGoSdk:
+        description: "Skip the Go SDK verification. Defaults to 'false'. Enable this when verifying a pre-release for which we don't publish the Go SDK (for PRs and the default branch)."
+        required: false
+        type: boolean
+        default: false
   workflow_call:
     inputs:
       providerVersion: