Also setup dotnet v3.1.x for CLI

.github/workflows/on-push-verification.yml

@@ -17,13 +17,22 @@ jobs:
       # Checkout your code repository to scan
     - uses: actions/checkout@v2
 
-    # Ensure a compatible version of dotnet is installed.
+    # Ensure compatible versions of dotnet are installed.
+
+    # The [Microsoft Security Code Analysis CLI](https://aka.ms/mscadocs) is built with dotnet v3.1.201.
+    # A version greater than or equal to v3.1.201 of dotnet must be installed on the agent in order to run this action.
+    # Remote agents already have a compatible version of dotnet installed and this step may be skipped.
+    # For local agents, ensure dotnet version 3.1.201 or later is installed by including this action:
+    - uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: '3.1.x'
+
     # A version greater than or equal to v5.0.x of dotnet must be installed on the agent in order to run this action.
     - uses: actions/setup-dotnet@v1
       with:
         dotnet-version: '5.0.x'
 
-      # Run .NET Code Analysis
+    # Run .NET Code Analysis
     - name: Run .NET Code Analysis
       uses: ./
       id: code-analysis

.github/workflows/sample-workflow-ubuntu-latest.yml

@@ -20,13 +20,22 @@ jobs:
       # Checkout your code repository to scan
     - uses: actions/checkout@v2
 
-    # Ensure a compatible version of dotnet is installed.
+    # Ensure compatible versions of dotnet are installed.
+
+    # The [Microsoft Security Code Analysis CLI](https://aka.ms/mscadocs) is built with dotnet v3.1.201.
+    # A version greater than or equal to v3.1.201 of dotnet must be installed on the agent in order to run this action.
+    # Remote agents already have a compatible version of dotnet installed and this step may be skipped.
+    # For local agents, ensure dotnet version 3.1.201 or later is installed by including this action:
+    - uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: '3.1.x'
+
     # A version greater than or equal to v5.0.x of dotnet must be installed on the agent in order to run this action.
     - uses: actions/setup-dotnet@v1
       with:
         dotnet-version: '5.0.x'
 
-      # Run open source static analysis tools
+    # Run open source static analysis tools
     - name: Run .NET Code Analysis
       uses: dotnet/code-analysis@v1
       id: code-analysis

.github/workflows/sample-workflow-windows-latest.yml

@@ -20,13 +20,22 @@ jobs:
       # Checkout your code repository to scan
     - uses: actions/checkout@v2
 
-    # Ensure a compatible version of dotnet is installed.
+    # Ensure compatible versions of dotnet are installed.
+
+    # The [Microsoft Security Code Analysis CLI](https://aka.ms/mscadocs) is built with dotnet v3.1.201.
+    # A version greater than or equal to v3.1.201 of dotnet must be installed on the agent in order to run this action.
+    # Remote agents already have a compatible version of dotnet installed and this step may be skipped.
+    # For local agents, ensure dotnet version 3.1.201 or later is installed by including this action:
+    - uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: '3.1.x'
+
     # A version greater than or equal to v5.0.x of dotnet must be installed on the agent in order to run this action.
     - uses: actions/setup-dotnet@v1
       with:
         dotnet-version: '5.0.x'
 
-      # Run .NET Code Analysis
+    # Run .NET Code Analysis
     - name: Run .NET Code Analysis
       uses: dotnet/code-analysis@v1
       id: code-analysis