update remaining gh actions

Author: kMutagene

Diff for: .github/workflows/check-formatting.yml

@@ -17,9 +17,11 @@ jobs:
     - name: Setup .NET 5
       uses: actions/setup-dotnet@v1
       with:
-        dotnet-version: '5.0.302'
+        dotnet-version: '6.x.x'
 
     - name: Check source document formatting
+      working-directory: ./
       run: |
         dotnet tool restore
-        dotnet fake build -t CheckFormat
+        chmod u+x ./build.sh
+        ./build.sh CheckFormat

Diff for: .github/workflows/verify-docs.yml

@@ -14,12 +14,12 @@ jobs:
     steps:
     - uses: actions/checkout@v2
 
-    - name: Setup .NET 5
+    - name: Setup .NET 6
       uses: actions/setup-dotnet@v1
       with:
-        dotnet-version: '5.0.302'
+        dotnet-version: '6.x.x'
 
     - name: Run verification script
       run: |
         dotnet tool restore
-        dotnet fake build -t verifydocs
+        ./build.cmd verifydocs