Nit workflow fix to keep CI greener (#3548)

.github/workflows/dotnet-format-md.yml

@@ -10,12 +10,13 @@ name: dotnet format
 on:
   pull_request:
     branches: [ main ]
-    paths:
+    paths-ignore:
-    - '**.md'
+    - '**.cs'
+    - '.editorconfig'
 
 jobs:
   check-format:
     runs-on: ubuntu-latest
 
     steps:
-      - run: 'echo "No build required"'
+      - run: 'echo "No build required"'

.github/workflows/dotnet-format.yml

@@ -21,10 +21,9 @@ jobs:
       uses: actions/checkout@v3
 
     - name: Setup .NET Core 7.0
-    - uses: actions/setup-dotnet@v2
+      uses: actions/setup-dotnet@v2
       with:
         dotnet-version: '7.0.x'
-        include-prerelease: true
 
     - name: Install format tool
       run: dotnet tool install -g dotnet-format