Add dotnet setup to other github actions

.github/workflows/tests.yml

@@ -11,6 +11,13 @@ jobs:
     steps:
     - name: Checkout repo
       uses: actions/checkout@v3
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v3
+      with:
+        dotnet-version: 7.0.x
+    - name: Print .NET info
+      run: |
+        dotnet --info
     - name: Checkout LFS
       run: |
         git lfs version