Update .NET SDK for GitHub Actions

Author: nojaf

.github/workflows/docs.yml

@@ -14,15 +14,11 @@ jobs:
   build:
     runs-on: windows-latest
     steps:
-    - uses: actions/checkout@v2
-    - name: Setup .NET Core
-      uses: actions/setup-dotnet@v1
+    - uses: actions/checkout@v3
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v3
       with:
-        dotnet-version: 6.0.400
-    - name: Setup .NET Core
-      uses: actions/setup-dotnet@v1
-      with:
-        dotnet-version: 7.0.100-preview.6.22352.1
+        dotnet-version: 7.0.100
     - name: Restore tools
       run: dotnet tool restore
     - name: Restore projects

.github/workflows/pr.yml

@@ -15,15 +15,11 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-    - uses: actions/checkout@v2
-    - name: Setup .NET Core
-      uses: actions/setup-dotnet@v1
+    - uses: actions/checkout@v3
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v3
       with:
-        dotnet-version: 6.0.400
-    - name: Setup .NET Core
-      uses: actions/setup-dotnet@v1
-      with:
-        dotnet-version: 7.0.100-preview.6.22352.1
+        dotnet-version: 7.0.100
     - name: Restore tools
       run: dotnet tool restore
     - name: Restore projects