Tweak for dotnet format not supporting proj files.

.github/workflows/dotnet-format.yml

@@ -17,10 +17,16 @@ jobs:
       uses: actions/setup-dotnet@v4
 
     - name: dotnet restore
-      run: dotnet restore
+      run: dotnet restore ./build/OpenTelemetry.proj
 
     - name: dotnet format
-      run: dotnet format ./build/OpenTelemetry.proj --no-restore --verify-no-changes
+      shell: pwsh
+      run: |
+        $projects = Get-ChildItem -Path *.csproj -Recurse
+
+        foreach ($project in $projects) {
+            dotnet format $project --no-restore --verify-no-changes
+        }
       env:
         ExposeExperimentalFeatures: false
 
@@ -35,9 +41,15 @@ jobs:
       uses: actions/setup-dotnet@v4
 
     - name: dotnet restore
-      run: dotnet restore
+      run: dotnet restore ./build/OpenTelemetry.proj
 
     - name: dotnet format
-      run: dotnet format ./build/OpenTelemetry.proj --no-restore --verify-no-changes
+      shell: pwsh
+      run: |
+        $projects = Get-ChildItem -Path *.csproj -Recurse
+
+        foreach ($project in $projects) {
+            dotnet format $project --no-restore --verify-no-changes
+        }
       env:
         ExposeExperimentalFeatures: true

src/OpenTelemetry/Batch.cs

@@ -4,6 +4,8 @@
 using System.Collections;
 using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
+// Testing dotnet format workflow
+using System.Linq;
 using OpenTelemetry.Internal;
 using OpenTelemetry.Logs;